Podcast
Questions and Answers
The sour taste of food is due to ______ present in them.
The sour taste of food is due to ______ present in them.
acids
______ can help to neutralize acidity in the stomach.
______ can help to neutralize acidity in the stomach.
Baking soda solution
Acids change blue litmus to ______.
Acids change blue litmus to ______.
red
Bases are known for their ______ taste.
Bases are known for their ______ taste.
When soap is scrubbed on a curry stain, it turns ______ due to its basic nature.
When soap is scrubbed on a curry stain, it turns ______ due to its basic nature.
Turmeric is another natural ______ used as an indicator.
Turmeric is another natural ______ used as an indicator.
Litmus solution is extracted from ______.
Litmus solution is extracted from ______.
When neutral, litmus solution appears ______.
When neutral, litmus solution appears ______.
Synthetic indicators, such as methyl orange and ______, are used to test for acids and bases.
Synthetic indicators, such as methyl orange and ______, are used to test for acids and bases.
Indicators like red cabbage leaves and ______ petals can indicate the presence of an acid or base.
Indicators like red cabbage leaves and ______ petals can indicate the presence of an acid or base.
The color of red litmus changes to ______ when exposed to a base.
The color of red litmus changes to ______ when exposed to a base.
A stain of curry becomes reddish-brown when scrubbed with ______.
A stain of curry becomes reddish-brown when scrubbed with ______.
When washing a cloth scrubbed with soap, it turns ______ again after rinsing.
When washing a cloth scrubbed with soap, it turns ______ again after rinsing.
Litmus is obtained from ______, which is part of the Thallophyta division.
Litmus is obtained from ______, which is part of the Thallophyta division.
The sour taste of food is primarily caused by ______ in the food.
The sour taste of food is primarily caused by ______ in the food.
We can use ______ indicators to test for acids and bases.
We can use ______ indicators to test for acids and bases.
Turmeric is also known as a natural ______ in acid-base reactions.
Turmeric is also known as a natural ______ in acid-base reactions.
The ability of acids and bases to neutralize each other is fundamental in ______.
The ability of acids and bases to neutralize each other is fundamental in ______.
After neutralizing acidity, a ______ solution is formed.
After neutralizing acidity, a ______ solution is formed.
Hydrangea flowers can indicate the presence of ______ in a solution.
Hydrangea flowers can indicate the presence of ______ in a solution.
The bitter taste of food is due to the presence of ______.
The bitter taste of food is due to the presence of ______.
Baking soda solution can be suggested as a remedy for a problem of ______.
Baking soda solution can be suggested as a remedy for a problem of ______.
Acids and bases ______ each other’s effects.
Acids and bases ______ each other’s effects.
Acids change the color of blue litmus to ______.
Acids change the color of blue litmus to ______.
Bases change the color of red litmus to ______.
Bases change the color of red litmus to ______.
When soap, which is basic in nature, is scrubbed on a curry stain, it becomes ______-brown.
When soap, which is basic in nature, is scrubbed on a curry stain, it becomes ______-brown.
Phenolphthalein is a ______ indicator.
Phenolphthalein is a ______ indicator.
The litmus solution is extracted from a plant called ______.
The litmus solution is extracted from a plant called ______.
Red cabbage leaves are a natural material that can act as an acid-base ______.
Red cabbage leaves are a natural material that can act as an acid-base ______.
Petunia and Geranium have coloured ______ petals that can indicate the presence of acid or base in a solution.
Petunia and Geranium have coloured ______ petals that can indicate the presence of acid or base in a solution.
Indicators like red litmus can change color in the presence of an ______ solution.
Indicators like red litmus can change color in the presence of an ______ solution.
A basic solution can be identified if red litmus paper turns ______.
A basic solution can be identified if red litmus paper turns ______.
Testing with ______ litmus paper will help identify basic solutions.
Testing with ______ litmus paper will help identify basic solutions.
In laboratory tests, phenolphthalein acts as an ______ indicator.
In laboratory tests, phenolphthalein acts as an ______ indicator.
A ______ solution is identified by the change in color of blue litmus paper to red.
A ______ solution is identified by the change in color of blue litmus paper to red.
Olfactory indicators change their ______ when exposed to acidic or basic environments.
Olfactory indicators change their ______ when exposed to acidic or basic environments.
Hydrochloric acid is one type of ______ that can be found in the laboratory.
Hydrochloric acid is one type of ______ that can be found in the laboratory.
The process of testing color changes in different solutions involves the use of various ______.
The process of testing color changes in different solutions involves the use of various ______.
To test for acids and bases, you can use finely chopped ______ as a natural indicator.
To test for acids and bases, you can use finely chopped ______ as a natural indicator.
The basic solution of sodium hydroxide can be tested with ______ litmus paper.
The basic solution of sodium hydroxide can be tested with ______ litmus paper.
In the laboratory, a solution that turns red litmus paper blue is considered ______.
In the laboratory, a solution that turns red litmus paper blue is considered ______.
Hydrochloric acid, sulphuric acid, and nitric acid are examples of ______.
Hydrochloric acid, sulphuric acid, and nitric acid are examples of ______.
The change in color of blue litmus paper to red indicates the presence of an ______ solution.
The change in color of blue litmus paper to red indicates the presence of an ______ solution.
Indicators like phenolphthalein can change color when exposed to ______ solutions.
Indicators like phenolphthalein can change color when exposed to ______ solutions.
When testing for acids and bases, one can use natural indicators such as finely chopped ______.
When testing for acids and bases, one can use natural indicators such as finely chopped ______.
To identify a basic solution, you can use red litmus paper which will turn ______.
To identify a basic solution, you can use red litmus paper which will turn ______.
The basic compound sodium hydroxide is often abbreviated as ______.
The basic compound sodium hydroxide is often abbreviated as ______.
Indicators like methyl orange and phenolphthalein are classified as ______ indicators.
Indicators like methyl orange and phenolphthalein are classified as ______ indicators.
The characteristic sour taste of many foods is due to the presence of ______.
The characteristic sour taste of many foods is due to the presence of ______.
Substances whose odour changes in acidic or basic media are called ______ indicators.
Substances whose odour changes in acidic or basic media are called ______ indicators.
To prepare olfactory indicators, finely chopped ______ are used with cloth strips and left in a plastic bag overnight.
To prepare olfactory indicators, finely chopped ______ are used with cloth strips and left in a plastic bag overnight.
In the lab, you can use ______ paper to identify the contents of 3 test tubes with distilled water, an acid, and a base
In the lab, you can use ______ paper to identify the contents of 3 test tubes with distilled water, an acid, and a base
In the lab, ______ and sulphuric acid (H2SO4) are examples of acids.
In the lab, ______ and sulphuric acid (H2SO4) are examples of acids.
______ is an example of a solution that can be used to test the behavior of acids and bases.
______ is an example of a solution that can be used to test the behavior of acids and bases.
When testing with litmus, a base will turn blue ______ paper.
When testing with litmus, a base will turn blue ______ paper.
Phenolphthalein, methyl orange, blue litmus and ______ are indicators used in experiments to test for acids and bases.
Phenolphthalein, methyl orange, blue litmus and ______ are indicators used in experiments to test for acids and bases.
A ______ is identified by observing the change in colour of an indicator, like litmus paper.
A ______ is identified by observing the change in colour of an indicator, like litmus paper.
Using litmus, an ______ solution causes blue litmus paper to turn red.
Using litmus, an ______ solution causes blue litmus paper to turn red.
The colour change of litmus, phenolphthalein, and ______ indicates whether a substance is acidic or basic.
The colour change of litmus, phenolphthalein, and ______ indicates whether a substance is acidic or basic.
Vanilla essence and clove oil can be tested for changes in ______ when mixed with acids and bases.
Vanilla essence and clove oil can be tested for changes in ______ when mixed with acids and bases.
In the experiment with metals, ______ acid is used to react with zinc granules.
In the experiment with metals, ______ acid is used to react with zinc granules.
When zinc granules react with dilute sulphuric acid, a gas is ______.
When zinc granules react with dilute sulphuric acid, a gas is ______.
The gas produced in the reaction of zinc with sulphuric acid is collected with a ______ solution.
The gas produced in the reaction of zinc with sulphuric acid is collected with a ______ solution.
When a burning candle is brought near the gas-filled bubble, the gas will ______.
When a burning candle is brought near the gas-filled bubble, the gas will ______.
The reaction of metals with acids can be tested by using acids like HCl, HNO3, and ______.
The reaction of metals with acids can be tested by using acids like HCl, HNO3, and ______.
Vanilla, onion, and clove can be used as ______ indicators
Vanilla, onion, and clove can be used as ______ indicators
When testing the reaction of acids with metals, ______ granules are added to dilute sulphuric acid.
When testing the reaction of acids with metals, ______ granules are added to dilute sulphuric acid.
The bubbles formed in the soap solution when reacting zinc and acid are due to the presence of a ______.
The bubbles formed in the soap solution when reacting zinc and acid are due to the presence of a ______.
The activity of testing the reaction of metal with acid needs teacher's ______
The activity of testing the reaction of metal with acid needs teacher's ______
Vanilla essence and clove oil can be used as ______ indicators.
Vanilla essence and clove oil can be used as ______ indicators.
When dilute HCl is added to vanilla essence the ______ is noted.
When dilute HCl is added to vanilla essence the ______ is noted.
Dilute ______ solution is one of the substances used to test changes in odor for olfactory indicators.
Dilute ______ solution is one of the substances used to test changes in odor for olfactory indicators.
The reaction between zinc granules and dilute sulphuric acid produces a ______.
The reaction between zinc granules and dilute sulphuric acid produces a ______.
The gas produced from the reaction of zinc and sulfuric acid is tested by burning a ______.
The gas produced from the reaction of zinc and sulfuric acid is tested by burning a ______.
When testing the gas from the metal and acid reaction, bubbles form in a ______ solution.
When testing the gas from the metal and acid reaction, bubbles form in a ______ solution.
In the experiment with metal and acid, dilute ______ acid is used.
In the experiment with metal and acid, dilute ______ acid is used.
The experiment testing a metal and an acid can be repeated using acids like HCl, HNO3 and ______.
The experiment testing a metal and an acid can be repeated using acids like HCl, HNO3 and ______.
In testing for properties of an acid, the surface of ______ granules will show some reaction.
In testing for properties of an acid, the surface of ______ granules will show some reaction.
When testing the gas of a metal and an acid, you should observe ______ after introducing a flame.
When testing the gas of a metal and an acid, you should observe ______ after introducing a flame.
To test the odour of substances, you can use dilute ______ essence.
To test the odour of substances, you can use dilute ______ essence.
The reaction of zinc granules with dilute ______ acid produces hydrogen gas.
The reaction of zinc granules with dilute ______ acid produces hydrogen gas.
When adding dilute ______ to the test, bubbles form in the soap solution.
When adding dilute ______ to the test, bubbles form in the soap solution.
You can repeat the activity with some more acids like HCl, ______, and CH3COOH.
You can repeat the activity with some more acids like HCl, ______, and CH3COOH.
The gas evolved from the reaction is tested using a burning ______.
The gas evolved from the reaction is tested using a burning ______.
Observations of reactions can indicate if the changes are ______ or different.
Observations of reactions can indicate if the changes are ______ or different.
Rinsing cloth strips with water helps to check their ______.
Rinsing cloth strips with water helps to check their ______.
Clove oil is another substance whose odour can be tested with dilute ______ and NaOH solutions.
Clove oil is another substance whose odour can be tested with dilute ______ and NaOH solutions.
Different observations noted during the experiments help in understanding the ______ properties of acids and bases.
Different observations noted during the experiments help in understanding the ______ properties of acids and bases.
Observing the surface of zinc granules can reveal the formation of ______.
Observing the surface of zinc granules can reveal the formation of ______.
The reaction of a metal with an acid produces ______ gas.
The reaction of a metal with an acid produces ______ gas.
Zinc metal reacts with sodium hydroxide solution to form sodium ______.
Zinc metal reacts with sodium hydroxide solution to form sodium ______.
Sodium carbonate reacts with hydrochloric acid to produce ______ gas.
Sodium carbonate reacts with hydrochloric acid to produce ______ gas.
In the reaction involving sodium hydrogencarbonate and hydrochloric acid, ______ is one of the products.
In the reaction involving sodium hydrogencarbonate and hydrochloric acid, ______ is one of the products.
The chemical equation for the reaction of sodium hydroxide and zinc is 2NaOH(aq) + Zn(s) → Na2ZnO2(s) + ______.
The chemical equation for the reaction of sodium hydroxide and zinc is 2NaOH(aq) + Zn(s) → Na2ZnO2(s) + ______.
In test tube B, sodium ______ was used to observe the reaction with hydrochloric acid.
In test tube B, sodium ______ was used to observe the reaction with hydrochloric acid.
The result of passing the gas produced through lime water is a ______ solution.
The result of passing the gas produced through lime water is a ______ solution.
The formula for sodium carbonate is ______.
The formula for sodium carbonate is ______.
Metal carbonates and metal hydrogencarbonates typically react with acids to produce a ______ and gases.
Metal carbonates and metal hydrogencarbonates typically react with acids to produce a ______ and gases.
The reaction of acids with metals is often summarized as Acid + Metal → ______ + Hydrogen gas.
The reaction of acids with metals is often summarized as Acid + Metal → ______ + Hydrogen gas.
When a metal reacts with an acid a _______ is formed.
When a metal reacts with an acid a _______ is formed.
The reaction of a metal with an acid produces hydrogen _______.
The reaction of a metal with an acid produces hydrogen _______.
The chemical formula for sodium hydroxide is _______.
The chemical formula for sodium hydroxide is _______.
When granulated zinc reacts with sodium hydroxide, _______ gas is released.
When granulated zinc reacts with sodium hydroxide, _______ gas is released.
The product formed when zinc reacts with sodium hydroxide is called sodium _______.
The product formed when zinc reacts with sodium hydroxide is called sodium _______.
The chemical formula for sodium carbonate is _______.
The chemical formula for sodium carbonate is _______.
Sodium hydrogencarbonate is also known as sodium _______.
Sodium hydrogencarbonate is also known as sodium _______.
The chemical formula for sodium hydrogencarbonate is _______.
The chemical formula for sodium hydrogencarbonate is _______.
When metal carbonates react with acids, _______ gas is produced.
When metal carbonates react with acids, _______ gas is produced.
Lime water is a solution of calcium _______.
Lime water is a solution of calcium _______.
Acids react with metals to form a compound called a ______.
Acids react with metals to form a compound called a ______.
When a metal reacts with an acid, it displaces ______ atoms.
When a metal reacts with an acid, it displaces ______ atoms.
Sodium hydroxide reacts with zinc to form sodium ______.
Sodium hydroxide reacts with zinc to form sodium ______.
The reaction between sodium hydroxide and zinc also produces ______ gas.
The reaction between sodium hydroxide and zinc also produces ______ gas.
Not all metals can react with acids to form hydrogen gas, these reactions are not always ______.
Not all metals can react with acids to form hydrogen gas, these reactions are not always ______.
Metal carbonates and metal hydrogencarbonates react with acids to produce a ______.
Metal carbonates and metal hydrogencarbonates react with acids to produce a ______.
Sodium carbonate is represented by the formula ______.
Sodium carbonate is represented by the formula ______.
Sodium hydrogencarbonate is represented by the formula ______.
Sodium hydrogencarbonate is represented by the formula ______.
The gas produced when metal carbonates react with acids can be passed through ______ water.
The gas produced when metal carbonates react with acids can be passed through ______ water.
Limestone, chalk, and marble are different forms of calcium ______.
Limestone, chalk, and marble are different forms of calcium ______.
Metal carbonates and hydrogencarbonates react with acids to give a corresponding salt, carbon dioxide, and ______.
Metal carbonates and hydrogencarbonates react with acids to give a corresponding salt, carbon dioxide, and ______.
The reaction between an acid and a base to form a salt and water is called a ______ reaction.
The reaction between an acid and a base to form a salt and water is called a ______ reaction.
When copper oxide reacts with hydrochloric acid, it forms copper(II) ______ and water.
When copper oxide reacts with hydrochloric acid, it forms copper(II) ______ and water.
The blue-green color of the solution is due to the formation of copper(II) ______ in the reaction between copper oxide and hydrochloric acid.
The blue-green color of the solution is due to the formation of copper(II) ______ in the reaction between copper oxide and hydrochloric acid.
When excess carbon dioxide is passed through calcium carbonate the product is calcium ______, which is soluble in water.
When excess carbon dioxide is passed through calcium carbonate the product is calcium ______, which is soluble in water.
The effect of a base is nullified by an ______, and vice versa.
The effect of a base is nullified by an ______, and vice versa.
NaOH is a chemical formula for ______ hydroxide.
NaOH is a chemical formula for ______ hydroxide.
In a neutralization reaction, a ______ and water are formed.
In a neutralization reaction, a ______ and water are formed.
Metal oxide plus ______ produces a salt and water.
Metal oxide plus ______ produces a salt and water.
Limestone, chalk and marble are different forms of ______.
Limestone, chalk and marble are different forms of ______.
The reaction between NaOH and HCl produces ______ as one of its products.
The reaction between NaOH and HCl produces ______ as one of its products.
A reaction between an acid and a base that produces salt and water is known as ______.
A reaction between an acid and a base that produces salt and water is known as ______.
When copper oxide reacts with hydrochloric acid, it forms ______ chloride.
When copper oxide reacts with hydrochloric acid, it forms ______ chloride.
The general reaction format for a metal oxide reacting with an acid is ______ + Acid → Salt + Water.
The general reaction format for a metal oxide reacting with an acid is ______ + Acid → Salt + Water.
In the reaction of CaCO3 with CO2 and H2O, the product formed is ______.
In the reaction of CaCO3 with CO2 and H2O, the product formed is ______.
The process of reacting an acid with a carbonate results in the release of ______.
The process of reacting an acid with a carbonate results in the release of ______.
The color change of phenolphthalein indicates the presence of an ______.
The color change of phenolphthalein indicates the presence of an ______.
Base + Acid → ______ + Water is a general representation of a neutralisation reaction.
Base + Acid → ______ + Water is a general representation of a neutralisation reaction.
When NaOH is added to HCl, it can result in the formation of ______.
When NaOH is added to HCl, it can result in the formation of ______.
All metal carbonates and hydrogencarbonates react with acids to give a salt, carbon dioxide and ______.
All metal carbonates and hydrogencarbonates react with acids to give a salt, carbon dioxide and ______.
The reaction between an acid and a base to give a salt and water is known as a ______ reaction.
The reaction between an acid and a base to give a salt and water is known as a ______ reaction.
When copper oxide reacts with hydrochloric acid, a blue-green solution containing copper(II) ______ is formed.
When copper oxide reacts with hydrochloric acid, a blue-green solution containing copper(II) ______ is formed.
In a neutralization reaction the effect of a base is nullified by an ______.
In a neutralization reaction the effect of a base is nullified by an ______.
The reaction of a metal oxide with an acid produces a salt and ______.
The reaction of a metal oxide with an acid produces a salt and ______.
The chemical formula for calcium bicarbonate is Ca( ______ )2.
The chemical formula for calcium bicarbonate is Ca( ______ )2.
The neutralisation reaction can be summarised as Base + Acid → ______ + Water
The neutralisation reaction can be summarised as Base + Acid → ______ + Water
Adding phenolphthalein to sodium hydroxide results in a ______ colored solution.
Adding phenolphthalein to sodium hydroxide results in a ______ colored solution.
The colour of the phenolphthalein changes after the addition of an ______.
The colour of the phenolphthalein changes after the addition of an ______.
Metallic oxides react with acids to give salts and ______.
Metallic oxides react with acids to give salts and ______.
Metallic oxides are considered to be ______ oxides due to their reaction with acids.
Metallic oxides are considered to be ______ oxides due to their reaction with acids.
Calcium hydroxide, which is a base, reacts with carbon dioxide to produce a salt and ______.
Calcium hydroxide, which is a base, reacts with carbon dioxide to produce a salt and ______.
Non-metallic oxides are considered ______ in nature.
Non-metallic oxides are considered ______ in nature.
When acids react with metals, ______ gas is usually liberated.
When acids react with metals, ______ gas is usually liberated.
Metal compound A reacts with dilute hydrochloric acid to produce ______.
Metal compound A reacts with dilute hydrochloric acid to produce ______.
Acids generate ______ gas on reacting with metals.
Acids generate ______ gas on reacting with metals.
All acids have similar chemical ______.
All acids have similar chemical ______.
All acids contain the element ______.
All acids contain the element ______.
The compound formed when metal compound A reacts with dilute hydrochloric acid includes calcium ______.
The compound formed when metal compound A reacts with dilute hydrochloric acid includes calcium ______.
Metallic oxides are said to be ______ oxides.
Metallic oxides are said to be ______ oxides.
Non-metallic oxides are ______ in nature.
Non-metallic oxides are ______ in nature.
Calcium hydroxide reacts with carbon dioxide to produce a salt and ______.
Calcium hydroxide reacts with carbon dioxide to produce a salt and ______.
When an acid reacts with a metal, ______ gas is usually liberated.
When an acid reacts with a metal, ______ gas is usually liberated.
The gas evolved extinguishes a burning ______.
The gas evolved extinguishes a burning ______.
One of the compounds formed when metal compound A reacts with dilute hydrochloric acid is calcium ______.
One of the compounds formed when metal compound A reacts with dilute hydrochloric acid is calcium ______.
Metallic oxides react with acids to give ______ and water.
Metallic oxides react with acids to give ______ and water.
Metallic oxides are considered to be ______ oxides.
Metallic oxides are considered to be ______ oxides.
Non-metallic oxides are considered to be ______ in nature.
Non-metallic oxides are considered to be ______ in nature.
Calcium hydroxide, a base, reacts with carbon dioxide to produce a ______ and water.
Calcium hydroxide, a base, reacts with carbon dioxide to produce a ______ and water.
A gas is usually liberated when an acid reacts with a ______.
A gas is usually liberated when an acid reacts with a ______.
The gas evolved from the reaction of a metal compound with dilute hydrochloric acid extinguishes a burning ______.
The gas evolved from the reaction of a metal compound with dilute hydrochloric acid extinguishes a burning ______.
One of the compounds formed when a metal compound reacts with hydrochloric acid is calcium ______.
One of the compounds formed when a metal compound reacts with hydrochloric acid is calcium ______.
The glowing of the bulb indicates that there is a flow of electric current through the ______.
The glowing of the bulb indicates that there is a flow of electric current through the ______.
Acids produce hydrogen ions, H+ in ______.
Acids produce hydrogen ions, H+ in ______.
The acidic character of dry HCl gas can be inferred based on its behavior with ______ paper.
The acidic character of dry HCl gas can be inferred based on its behavior with ______ paper.
Hydrogen ions cannot exist alone, but they form ______ ions after combining with water molecules.
Hydrogen ions cannot exist alone, but they form ______ ions after combining with water molecules.
When a base like sodium hydroxide is dissolved in water, it produces ______ ions.
When a base like sodium hydroxide is dissolved in water, it produces ______ ions.
In the presence of water, HCl dissociates into H3O+ and ______.
In the presence of water, HCl dissociates into H3O+ and ______.
The addition of concentrated sulphuric acid to an ionic salt can lead to the evolution of a ______ gas.
The addition of concentrated sulphuric acid to an ionic salt can lead to the evolution of a ______ gas.
Ions are responsible for the conductivity of acidic ______.
Ions are responsible for the conductivity of acidic ______.
Alkalis such as sodium hydroxide and ______ hydroxide can also be tested for their basic properties.
Alkalis such as sodium hydroxide and ______ hydroxide can also be tested for their basic properties.
When sodium chloride is treated with an acid, a ______ reaction occurs leading to gas evolution.
When sodium chloride is treated with an acid, a ______ reaction occurs leading to gas evolution.
The glowing of the bulb indicates a flow of electric ______ through the solution.
The glowing of the bulb indicates a flow of electric ______ through the solution.
Electric current is carried through an acidic solution by ______.
Electric current is carried through an acidic solution by ______.
Acids contain the ______ ion as the cation.
Acids contain the ______ ion as the cation.
Acids produce hydrogen ______, H+(aq), in solution that cause their acidic properties.
Acids produce hydrogen ______, H+(aq), in solution that cause their acidic properties.
Hydrogen ions cannot exist alone and must combine with ______ molecules.
Hydrogen ions cannot exist alone and must combine with ______ molecules.
Hydrogen ions are shown as H+(aq) or ______ ion.
Hydrogen ions are shown as H+(aq) or ______ ion.
The separation of H+ ions from HCl molecules cannot occur in the absence of ______.
The separation of H+ ions from HCl molecules cannot occur in the absence of ______.
When an acid is dissolved in water, it forms hydronium ions, also written as ______.
When an acid is dissolved in water, it forms hydronium ions, also written as ______.
Sodium hydroxide, NaOH, is an example of a base that produces ______ ions in water.
Sodium hydroxide, NaOH, is an example of a base that produces ______ ions in water.
When NaOH is dissolved in water, it forms Na+ and ______ ions.
When NaOH is dissolved in water, it forms Na+ and ______ ions.
The bulb will start glowing in the case of ______.
The bulb will start glowing in the case of ______.
Glucose and alcohol solutions do not conduct ______.
Glucose and alcohol solutions do not conduct ______.
The electric current is carried through the acidic solution by ______.
The electric current is carried through the acidic solution by ______.
Acids contain H+ ion as a ______.
Acids contain H+ ion as a ______.
Acids produce hydrogen ions, H+(aq), in solution, which are responsible for their ______ properties.
Acids produce hydrogen ions, H+(aq), in solution, which are responsible for their ______ properties.
Hydrogen ions in HCl are produced in the presence of ______.
Hydrogen ions in HCl are produced in the presence of ______.
Hydrogen ions cannot exist alone, but they exist after combining with ______ molecules.
Hydrogen ions cannot exist alone, but they exist after combining with ______ molecules.
Hydrogen ions must always be shown as H+(aq) or ______ ion (H3O+).
Hydrogen ions must always be shown as H+(aq) or ______ ion (H3O+).
When a base like sodium hydroxide is dissolved in water it forms sodium ions and ______ ions.
When a base like sodium hydroxide is dissolved in water it forms sodium ions and ______ ions.
Bases generate ______ ions in water.
Bases generate ______ ions in water.
Bases that are soluble in water are called ______.
Bases that are soluble in water are called ______.
Alkalis are soapy to touch, bitter and ______.
Alkalis are soapy to touch, bitter and ______.
The reaction of an acid and a base forms a ______ and water.
The reaction of an acid and a base forms a ______ and water.
The process of dissolving an acid or a base in water is a highly ______ one.
The process of dissolving an acid or a base in water is a highly ______ one.
When mixing concentrated acid with water, the acid should be added slowly with constant ______.
When mixing concentrated acid with water, the acid should be added slowly with constant ______.
If water is added to a concentrated acid, the heat generated may cause the mixture to ______ out.
If water is added to a concentrated acid, the heat generated may cause the mixture to ______ out.
The glass container may break due to excessive local ______ when mixing concentrated acids with water.
The glass container may break due to excessive local ______ when mixing concentrated acids with water.
All bases do not dissolve in ______.
All bases do not dissolve in ______.
Concentrated acids, like nitric and sulfuric acid, must always be added slowly to ______.
Concentrated acids, like nitric and sulfuric acid, must always be added slowly to ______.
An alkali is a base that dissolves in ______.
An alkali is a base that dissolves in ______.
When an acid reacts with a base, the products are salt and ______.
When an acid reacts with a base, the products are salt and ______.
The process of dissolving an acid in water is highly ______.
The process of dissolving an acid in water is highly ______.
Acid must always be added slowly to ______ with constant stirring.
Acid must always be added slowly to ______ with constant stirring.
When sodium hydroxide is mixed with water, it generates ______ ions.
When sodium hydroxide is mixed with water, it generates ______ ions.
Never taste or touch ______ as they may cause harm.
Never taste or touch ______ as they may cause harm.
The glass container may break due to excessive local ______.
The glass container may break due to excessive local ______.
All bases do not ______ in water.
All bases do not ______ in water.
The neutralization reaction can be viewed as ______ + Base → Salt + Water.
The neutralization reaction can be viewed as ______ + Base → Salt + Water.
Bases generate hydroxide (______ ) ions in water.
Bases generate hydroxide (______ ) ions in water.
An alkali is a base that ______ in water.
An alkali is a base that ______ in water.
Bases are soapy to touch, ______ and corrosive.
Bases are soapy to touch, ______ and corrosive.
In a neutralization reaction, an acid reacts with a base to form a salt and ______.
In a neutralization reaction, an acid reacts with a base to form a salt and ______.
The neutralization reaction can be represented as H+(aq) + OH–(aq) → ______.
The neutralization reaction can be represented as H+(aq) + OH–(aq) → ______.
When mixing concentrated acid with water, the acid must always be added ______ to water.
When mixing concentrated acid with water, the acid must always be added ______ to water.
The glass container may break due to excessive local ______ when mixing acid and water.
The glass container may break due to excessive local ______ when mixing acid and water.
The pH scale measures the concentration of ______ ions in a solution.
The pH scale measures the concentration of ______ ions in a solution.
A neutral solution has a pH value of ______.
A neutral solution has a pH value of ______.
On the pH scale, values less than 7 indicate an ______ solution.
On the pH scale, values less than 7 indicate an ______ solution.
As the pH value increases from 7 to 14, it indicates an increase in ______ ion concentration in the solution.
As the pH value increases from 7 to 14, it indicates an increase in ______ ion concentration in the solution.
When diluting an acid, the acid should be added to the ______.
When diluting an acid, the acid should be added to the ______.
Higher the hydronium ion concentration, lower is the ______ value.
Higher the hydronium ion concentration, lower is the ______ value.
The 'p' in pH stands for 'potenz' in ______.
The 'p' in pH stands for 'potenz' in ______.
A universal indicator is a mixture of several ______.
A universal indicator is a mixture of several ______.
Aqueous solutions of acids conduct ______.
Aqueous solutions of acids conduct ______.
A scale for measuring hydrogen ion concentration is called the ______ scale.
A scale for measuring hydrogen ion concentration is called the ______ scale.
The 'p' in pH stands for 'potenz' in German, meaning ______.
The 'p' in pH stands for 'potenz' in German, meaning ______.
A pH of 7 indicates a ______ solution.
A pH of 7 indicates a ______ solution.
Values less than 7 on the pH scale represent an ______ solution.
Values less than 7 on the pH scale represent an ______ solution.
As the pH value increases from 7 to 14, it represents an increase in ______ ion concentration.
As the pH value increases from 7 to 14, it represents an increase in ______ ion concentration.
The universal indicator shows different colours at different concentrations of ______ ions in a solution.
The universal indicator shows different colours at different concentrations of ______ ions in a solution.
A scale for measuring hydrogen ion concentrations in a solution is called the ______ scale.
A scale for measuring hydrogen ion concentrations in a solution is called the ______ scale.
We can quantitatively find the amount of H+ or OH- ions present in a solution by using a ______.
We can quantitatively find the amount of H+ or OH- ions present in a solution by using a ______.
The pH scale generally ranges from 0 (very acidic) to 14 (very ______).
The pH scale generally ranges from 0 (very acidic) to 14 (very ______).
PH should be thought of simply as a number which indicates the acidic or ______ nature of a solution.
PH should be thought of simply as a number which indicates the acidic or ______ nature of a solution.
The p in pH stands for ‘______’ in German, meaning power.
The p in pH stands for ‘______’ in German, meaning power.
On the pH scale we can measure pH generally from 0 (very acidic) to 14 (very ______).
On the pH scale we can measure pH generally from 0 (very acidic) to 14 (very ______).
Higher the hydronium ion concentration, ______ is the pH value.
Higher the hydronium ion concentration, ______ is the pH value.
The pH of a ______ solution is 7.
The pH of a ______ solution is 7.
As the pH value increases from 7 to 14, it represents an increase in OH– ion concentration in the solution and increase in the strength of ______.
As the pH value increases from 7 to 14, it represents an increase in OH– ion concentration in the solution and increase in the strength of ______.
Generally paper impregnated with the universal indicator is used for measuring ______.
Generally paper impregnated with the universal indicator is used for measuring ______.
Saliva has a pH value that is typically around ______ before a meal.
Saliva has a pH value that is typically around ______ before a meal.
Lemon juice is known to have a ______ pH, making it acidic.
Lemon juice is known to have a ______ pH, making it acidic.
A solution of 1M NaOH is classified as a ______ because it produces a high concentration of OH– ions.
A solution of 1M NaOH is classified as a ______ because it produces a high concentration of OH– ions.
Tap water generally has a pH of around ______, which is neutral.
Tap water generally has a pH of around ______, which is neutral.
When the pH of rainwater falls below 5.6, it is referred to as ______.
When the pH of rainwater falls below 5.6, it is referred to as ______.
Coffee is likely to have a ______ pH due to its acidic nature.
Coffee is likely to have a ______ pH due to its acidic nature.
The pH range that is optimal for most living organisms is between ______ and 7.8.
The pH range that is optimal for most living organisms is between ______ and 7.8.
Tomato juice is another example of a ______ substance with a low pH.
Tomato juice is another example of a ______ substance with a low pH.
Hydrochloric acid is an example of a strong ______ that dissociates completely in solution.
Hydrochloric acid is an example of a strong ______ that dissociates completely in solution.
The nature of solutions can be assessed based on their pH and the indicators used to test for ______.
The nature of solutions can be assessed based on their pH and the indicators used to test for ______.
The strength of acids and bases depends on the number of ______ ions and OH– ions produced, respectively.
The strength of acids and bases depends on the number of ______ ions and OH– ions produced, respectively.
Acids that give rise to more H+ ions are said to be ______ acids.
Acids that give rise to more H+ ions are said to be ______ acids.
Our body works within the pH range of 7.0 to 7.8, indicating that our bodies are slightly ______.
Our body works within the pH range of 7.0 to 7.8, indicating that our bodies are slightly ______.
When pH of rain water is less than 5.6, it is called ______ rain.
When pH of rain water is less than 5.6, it is called ______ rain.
When acid rain flows into the rivers, it lowers the ______ of the river water.
When acid rain flows into the rivers, it lowers the ______ of the river water.
The survival of ______ life in rivers with acidic water becomes challenging.
The survival of ______ life in rivers with acidic water becomes challenging.
The strength of acids and bases depends on the number of H+ ions and ______ ions produced.
The strength of acids and bases depends on the number of H+ ions and ______ ions produced.
Acids that give less H+ ions are said to be ______ acids.
Acids that give less H+ ions are said to be ______ acids.
Our body works within the pH range of 7.0 to ______.
Our body works within the pH range of 7.0 to ______.
When pH of rain water is less than ______, it is called acid rain.
When pH of rain water is less than ______, it is called acid rain.
Living organisms can survive only in a ______ range of pH change.
Living organisms can survive only in a ______ range of pH change.
The pH of saliva before a meal is different from the pH of saliva ______ meals.
The pH of saliva before a meal is different from the pH of saliva ______ meals.
A 1M solution of ______ is an example of a strong base.
A 1M solution of ______ is an example of a strong base.
The atmosphere of Venus contains thick clouds of sulphuric ______.
The atmosphere of Venus contains thick clouds of sulphuric ______.
Plants need a specific pH range in the ______ for healthy growth.
Plants need a specific pH range in the ______ for healthy growth.
Our stomach produces hydrochloric ______ to help with digestion.
Our stomach produces hydrochloric ______ to help with digestion.
During indigestion, the stomach produces too much ______, causing pain.
During indigestion, the stomach produces too much ______, causing pain.
Antacids are used to neutralize excess ______ in the stomach.
Antacids are used to neutralize excess ______ in the stomach.
Magnesium hydroxide, also known as Milk of magnesia, is a mild ______.
Magnesium hydroxide, also known as Milk of magnesia, is a mild ______.
Tooth decay occurs when the pH in the mouth is lower than ______.
Tooth decay occurs when the pH in the mouth is lower than ______.
Bacteria in the mouth create acids from sugar and food particles, leading to tooth ______.
Bacteria in the mouth create acids from sugar and food particles, leading to tooth ______.
Bee stings inject an ______ into the skin that causes irritation.
Bee stings inject an ______ into the skin that causes irritation.
Nettle leaves contain methanoic ______ which causes a painful burning sensation.
Nettle leaves contain methanoic ______ which causes a painful burning sensation.
The atmosphere of Venus contains thick clouds of ______ acid.
The atmosphere of Venus contains thick clouds of ______ acid.
Plants require a specific ______ range in the soil for healthy growth.
Plants require a specific ______ range in the soil for healthy growth.
The human stomach produces ______ acid to aid in digestion.
The human stomach produces ______ acid to aid in digestion.
Indigestion can occur when the stomach produces too much ______.
Indigestion can occur when the stomach produces too much ______.
To relieve indigestion, people often use ______ which neutralize excess acid.
To relieve indigestion, people often use ______ which neutralize excess acid.
Magnesium hydroxide, also known as milk of magnesia, is a mild ______ used to neutralize stomach acid.
Magnesium hydroxide, also known as milk of magnesia, is a mild ______ used to neutralize stomach acid.
Tooth decay starts when the pH of the mouth is lower than ______.
Tooth decay starts when the pH of the mouth is lower than ______.
Tooth enamel is made up of calcium ______, which is the hardest substance in the body.
Tooth enamel is made up of calcium ______, which is the hardest substance in the body.
Bacteria in the mouth produce acids by breaking down sugars and food, which can lead to tooth ______.
Bacteria in the mouth produce acids by breaking down sugars and food, which can lead to tooth ______.
Bee stings contain an ______ that causes pain and irritation.
Bee stings contain an ______ that causes pain and irritation.
Our stomach produces ______ acid to help with digestion.
Our stomach produces ______ acid to help with digestion.
Antacids neutralize excess ______ in the stomach.
Antacids neutralize excess ______ in the stomach.
Tooth enamel is made up of calcium ______.
Tooth enamel is made up of calcium ______.
Bacteria in the mouth produce acids from the degradation of ______ and food particles.
Bacteria in the mouth produce acids from the degradation of ______ and food particles.
Bee stings leave behind an ______ which causes pain.
Bee stings leave behind an ______ which causes pain.
Nettle leaves inject ______ acid causing burning pain.
Nettle leaves inject ______ acid causing burning pain.
Nettle leaves have stinging hairs that secrete ______ acid.
Nettle leaves have stinging hairs that secrete ______ acid.
A traditional remedy for nettle stings is rubbing the area with the leaf of the ______ plant.
A traditional remedy for nettle stings is rubbing the area with the leaf of the ______ plant.
In vinegar, the acid present is ______ acid.
In vinegar, the acid present is ______ acid.
Sour milk contains ______ acid.
Sour milk contains ______ acid.
Both oranges and lemons contain ______ acid.
Both oranges and lemons contain ______ acid.
Tamarind is known for having ______ acid.
Tamarind is known for having ______ acid.
The acid found in ant stings is ______ acid.
The acid found in ant stings is ______ acid.
Tomatoes contain the ______ acid.
Tomatoes contain the ______ acid.
A solution with a pH of 6 is considered ______.
A solution with a pH of 6 is considered ______.
Rubbing a nettle sting with a dock plant leaf is a traditional ______.
Rubbing a nettle sting with a dock plant leaf is a traditional ______.
Vinegar contains ______ acid.
Vinegar contains ______ acid.
Lemons contain ______ acid.
Lemons contain ______ acid.
Ant stings contain ______ acid.
Ant stings contain ______ acid.
The pH of solution A is 6 and pH of solution B is 8. Solution A has more ______ ion concentration.
The pH of solution A is 6 and pH of solution B is 8. Solution A has more ______ ion concentration.
Farmers might treat soil with quick lime to reduce soil ______.
Farmers might treat soil with quick lime to reduce soil ______.
Tamarind contains ______ acid.
Tamarind contains ______ acid.
Rubbing the affected area with a leaf of the ______ plant can help with nettle stings.
Rubbing the affected area with a leaf of the ______ plant can help with nettle stings.
Sour milk (curd) contains ______ acid.
Sour milk (curd) contains ______ acid.
Lemons are a good source of ______ acid.
Lemons are a good source of ______ acid.
Farmers may treat their fields with quick lime or slaked lime in ______ soil condition.
Farmers may treat their fields with quick lime or slaked lime in ______ soil condition.
Salts having the same positive or negative radicals are said to belong to a ______.
Salts having the same positive or negative radicals are said to belong to a ______.
NaCl and Na2SO4 belong to the family of ______ salts.
NaCl and Na2SO4 belong to the family of ______ salts.
Salts of a strong acid and a strong base are ______ with a pH value of 7.
Salts of a strong acid and a strong base are ______ with a pH value of 7.
Salts of a strong acid and a weak base are ______ with a pH value less than 7.
Salts of a strong acid and a weak base are ______ with a pH value less than 7.
Salts of a strong base and weak acid are ______ in nature, with a pH value more than 7.
Salts of a strong base and weak acid are ______ in nature, with a pH value more than 7.
Sodium chloride is the salt formed by the combination of hydrochloric acid and ______ solution.
Sodium chloride is the salt formed by the combination of hydrochloric acid and ______ solution.
The salt we use in our food is ______.
The salt we use in our food is ______.
Seawater contains many ______ dissolved in it, including sodium chloride.
Seawater contains many ______ dissolved in it, including sodium chloride.
Deposits of solid salt are also known as ______ salt.
Deposits of solid salt are also known as ______ salt.
Beds of rock salt were formed when seas of bygone ages ______ up.
Beds of rock salt were formed when seas of bygone ages ______ up.
NaCl and KCl belong to the family of ______ salts.
NaCl and KCl belong to the family of ______ salts.
Salts of a strong base and weak acid are ______ with a pH value more than 7.
Salts of a strong base and weak acid are ______ with a pH value more than 7.
Sodium chloride is the salt formed by the combination of hydrochloric acid and ______ hydroxide solution.
Sodium chloride is the salt formed by the combination of hydrochloric acid and ______ hydroxide solution.
Sodium chloride is a ______ salt.
Sodium chloride is a ______ salt.
Deposits of solid salt are often brown due to ______.
Deposits of solid salt are often brown due to ______.
Large salt crystals found in the ground are called ______ salt.
Large salt crystals found in the ground are called ______ salt.
Salts with either the same positive or negative radicals belong to a ______.
Salts with either the same positive or negative radicals belong to a ______.
Salts of a strong acid and a strong base are ______ with a pH of 7.
Salts of a strong acid and a strong base are ______ with a pH of 7.
Salts of a strong acid and weak base are ______ with a pH less than 7.
Salts of a strong acid and weak base are ______ with a pH less than 7.
Salts of a strong base and weak acid are ______ with a pH greater than 7.
Salts of a strong base and weak acid are ______ with a pH greater than 7.
Sodium chloride is formed by the combination of hydrochloric acid and ______ solution.
Sodium chloride is formed by the combination of hydrochloric acid and ______ solution.
Seawater contains many salts dissolved in it, from which ______ is separated.
Seawater contains many salts dissolved in it, from which ______ is separated.
The large crystals of salt formed in bygone ages are known as ______.
The large crystals of salt formed in bygone ages are known as ______.
Deposits of solid salt, known as rock salt, are often brown due to ______.
Deposits of solid salt, known as rock salt, are often brown due to ______.
The Dandi March by Mahatma Gandhi highlights the importance of ______ in India's freedom struggle.
The Dandi March by Mahatma Gandhi highlights the importance of ______ in India's freedom struggle.
Common salt is a raw material for making materials such as sodium hydroxide, baking soda, washing soda, and ______ powder.
Common salt is a raw material for making materials such as sodium hydroxide, baking soda, washing soda, and ______ powder.
When electricity is passed through an aqueous solution of sodium chloride, it decomposes to form sodium ______.
When electricity is passed through an aqueous solution of sodium chloride, it decomposes to form sodium ______.
The chlor-alkali process is named due to the products, chlorine and alkali for sodium ______.
The chlor-alkali process is named due to the products, chlorine and alkali for sodium ______.
In the chlor-alkali process, chlorine gas is given off at the ______.
In the chlor-alkali process, chlorine gas is given off at the ______.
Hydrogen gas is produced at the ______ in the chlor-alkali process.
Hydrogen gas is produced at the ______ in the chlor-alkali process.
The electrolysis of aqueous sodium chloride is also known as using ______.
The electrolysis of aqueous sodium chloride is also known as using ______.
Chlorine gas is used in the manufacture of ______ powder.
Chlorine gas is used in the manufacture of ______ powder.
Bleaching powder is produced by the action of chlorine on dry slaked ______.
Bleaching powder is produced by the action of chlorine on dry slaked ______.
Bleaching powder is represented as ______, although the actual chemical composition is quite complex.
Bleaching powder is represented as ______, although the actual chemical composition is quite complex.
Common salt is a raw material for making various materials including ______ hydroxide.
Common salt is a raw material for making various materials including ______ hydroxide.
The chlor-alkali process involves passing electricity through an aqueous solution of sodium ______.
The chlor-alkali process involves passing electricity through an aqueous solution of sodium ______.
In the chlor-alkali process, ______ gas is given off at the anode.
In the chlor-alkali process, ______ gas is given off at the anode.
The chlor-alkali process produces ______ gas at the cathode.
The chlor-alkali process produces ______ gas at the cathode.
The chemical formula for bleaching powder is represented as ______.
The chemical formula for bleaching powder is represented as ______.
During the electrolysis of aqueous sodium chloride, ______ is produced.
During the electrolysis of aqueous sodium chloride, ______ is produced.
The process of electrolysis of brine is known as the ______-alkali process.
The process of electrolysis of brine is known as the ______-alkali process.
Sodium hydroxide solution is formed near the ______ during electrolysis of brine.
Sodium hydroxide solution is formed near the ______ during electrolysis of brine.
Common salt is an important raw material for producing ______, sodium hydroxide.
Common salt is an important raw material for producing ______, sodium hydroxide.
The chlor-alkali process involves passing electricity through an aqueous solution of sodium chloride, known as ______.
The chlor-alkali process involves passing electricity through an aqueous solution of sodium chloride, known as ______.
During the chlor-alkali process, chlorine gas is produced at the ______.
During the chlor-alkali process, chlorine gas is produced at the ______.
The three products of the chlor-alkali process are sodium hydroxide, chlorine, and ______.
The three products of the chlor-alkali process are sodium hydroxide, chlorine, and ______.
The reaction for producing bleaching powder can be summarized as ______ + Cl2 → CaOCl2 + H2O.
The reaction for producing bleaching powder can be summarized as ______ + Cl2 → CaOCl2 + H2O.
The products obtained from the chlor-alkali process are all ______.
The products obtained from the chlor-alkali process are all ______.
The formula for bleaching powder is represented as ______, although its actual composition is complex.
The formula for bleaching powder is represented as ______, although its actual composition is complex.
The chlor-alkali process is named using the terms 'chlor' for ______ and 'alkali' for sodium hydroxide.
The chlor-alkali process is named using the terms 'chlor' for ______ and 'alkali' for sodium hydroxide.
Bleaching powder is used in the textile industry for bleaching cotton and linen, as well as for bleaching washed clothes in ______.
Bleaching powder is used in the textile industry for bleaching cotton and linen, as well as for bleaching washed clothes in ______.
Sodium hydrogencarbonate is commonly known as ______.
Sodium hydrogencarbonate is commonly known as ______.
The reaction that occurs when sodium hydrogencarbonate is heated produces sodium ______, water, and carbon dioxide.
The reaction that occurs when sodium hydrogencarbonate is heated produces sodium ______, water, and carbon dioxide.
Baking powder is a mixture of baking soda and a mild edible ______.
Baking powder is a mixture of baking soda and a mild edible ______.
Sodium hydrogencarbonate is used in soda-acid fire ______ as an effective extinguishing agent.
Sodium hydrogencarbonate is used in soda-acid fire ______ as an effective extinguishing agent.
Washing soda is represented chemically as ______.
Washing soda is represented chemically as ______.
Sodium hydrogencarbonate helps neutralize excess ______ in the stomach.
Sodium hydrogencarbonate helps neutralize excess ______ in the stomach.
When baking soda reacts with an acid, one of the products is ______ gas.
When baking soda reacts with an acid, one of the products is ______ gas.
The production of sodium carbonate can be achieved by ______ baking soda.
The production of sodium carbonate can be achieved by ______ baking soda.
______ powder is used to bleach cotton and linen in the textile industry.
______ powder is used to bleach cotton and linen in the textile industry.
Bleaching powder is used for bleaching wood pulp in paper ______.
Bleaching powder is used for bleaching wood pulp in paper ______.
Bleaching powder is used to make drinking water free from ______.
Bleaching powder is used to make drinking water free from ______.
The chemical name for baking soda is sodium ______.
The chemical name for baking soda is sodium ______.
Baking soda is used to make ______ powder, which acts as a leavening agent in baking.
Baking soda is used to make ______ powder, which acts as a leavening agent in baking.
Baking soda contains sodium ______ and is a mild non-corrosive basic salt.
Baking soda contains sodium ______ and is a mild non-corrosive basic salt.
Baking soda is an ingredient in ______, which helps neutralise excess acid in the stomach.
Baking soda is an ingredient in ______, which helps neutralise excess acid in the stomach.
Washing soda is obtained by the recrystallisation of sodium ______.
Washing soda is obtained by the recrystallisation of sodium ______.
Washing soda is a ______ salt and is commonly used in cleaning.
Washing soda is a ______ salt and is commonly used in cleaning.
Baking soda is used in soda-______ fire extinguishers.
Baking soda is used in soda-______ fire extinguishers.
______ is used for bleaching cotton and linen in the textile industry.
______ is used for bleaching cotton and linen in the textile industry.
Bleaching powder is used as an ______ agent in many chemical industries.
Bleaching powder is used as an ______ agent in many chemical industries.
______ is used to make drinking water free from germs.
______ is used to make drinking water free from germs.
Baking soda is produced using ______ as one of the raw materials.
Baking soda is produced using ______ as one of the raw materials.
Baking soda is a mild non-corrosive ______ salt.
Baking soda is a mild non-corrosive ______ salt.
Baking soda is a key ingredient in making ______ powder.
Baking soda is a key ingredient in making ______ powder.
Baking powder is a mixture of baking soda and a mild edible acid such as ______ acid.
Baking powder is a mixture of baking soda and a mild edible acid such as ______ acid.
Sodium hydrogencarbonate is also an ingredient in ______ which neutralizes stomach acids
Sodium hydrogencarbonate is also an ingredient in ______ which neutralizes stomach acids
______ is obtained by heating baking soda; recrystallisation of sodium carbonate gives washing soda.
______ is obtained by heating baking soda; recrystallisation of sodium carbonate gives washing soda.
The chemical formula for hydrated copper sulphate is Cu SO4 . ______
The chemical formula for hydrated copper sulphate is Cu SO4 . ______
Sodium carbonate is also known as ______ soda.
Sodium carbonate is also known as ______ soda.
Sodium carbonate can be used as a ______ agent for domestic purposes.
Sodium carbonate can be used as a ______ agent for domestic purposes.
When heating copper sulphate crystals, the ______ is removed and the salt turns white.
When heating copper sulphate crystals, the ______ is removed and the salt turns white.
The fixed number of water molecules present in one formula unit of a salt is called water of ______.
The fixed number of water molecules present in one formula unit of a salt is called water of ______.
Sodium carbonate is used in the manufacture of sodium compounds such as ______.
Sodium carbonate is used in the manufacture of sodium compounds such as ______.
Gypsum has two water molecules as water of ______.
Gypsum has two water molecules as water of ______.
______ is used in glass, soap and paper industries.
______ is used in glass, soap and paper industries.
The chemical formula of gypsum is CaSO4.______
The chemical formula of gypsum is CaSO4.______
Sodium carbonate is also used for removing permanent ______ of water
Sodium carbonate is also used for removing permanent ______ of water
10H2O signifies the presence of ten molecules of ______.
10H2O signifies the presence of ten molecules of ______.
Sodium carbonate and sodium hydrogencarbonate are useful chemicals for many ______ processes.
Sodium carbonate and sodium hydrogencarbonate are useful chemicals for many ______ processes.
Washing soda is used in the glass, soap, and ______ industries.
Washing soda is used in the glass, soap, and ______ industries.
Washing soda can be used as a ______ agent for domestic purposes.
Washing soda can be used as a ______ agent for domestic purposes.
Washing soda is used for removing permanent ______ of water.
Washing soda is used for removing permanent ______ of water.
Copper sulphate crystals have water of ______.
Copper sulphate crystals have water of ______.
When copper sulphate crystals are heated, the salt turns ______.
When copper sulphate crystals are heated, the salt turns ______.
Gypsum has ______ water molecules as water of crystallisation.
Gypsum has ______ water molecules as water of crystallisation.
The chemical formula for hydrated copper sulphate is CuSO4. ______H2O.
The chemical formula for hydrated copper sulphate is CuSO4. ______H2O.
The formula Na2CO3.10H2O signifies that sodium carbonate has ______ water molecules associated with it.
The formula Na2CO3.10H2O signifies that sodium carbonate has ______ water molecules associated with it.
Sodium carbonate, also known as ______ soda, is used in various industries like glass, soap, and paper.
Sodium carbonate, also known as ______ soda, is used in various industries like glass, soap, and paper.
The process of removing water of crystallisation from a salt is achieved by ______ the crystals.
The process of removing water of crystallisation from a salt is achieved by ______ the crystals.
Sodium carbonate is used for removing ______ hardness of water.
Sodium carbonate is used for removing ______ hardness of water.
Gypsum, another salt that contains water of crystallisation, has the chemical formula CaSO4. ______H2O.
Gypsum, another salt that contains water of crystallisation, has the chemical formula CaSO4. ______H2O.
When copper sulphate crystals are heated, they lose their blue color and become ______ in appearance.
When copper sulphate crystals are heated, they lose their blue color and become ______ in appearance.
The fixed number of water molecules present in a formula unit of a salt is called the water of ______.
The fixed number of water molecules present in a formula unit of a salt is called the water of ______.
After heating copper sulphate crystals, adding ______ restores their blue color.
After heating copper sulphate crystals, adding ______ restores their blue color.
Plaster of Paris is used by doctors to support ______ bones.
Plaster of Paris is used by doctors to support ______ bones.
When Plaster of Paris is mixed with water it becomes ______.
When Plaster of Paris is mixed with water it becomes ______.
Plaster of Paris can be used to make ______ and materials for decoration.
Plaster of Paris can be used to make ______ and materials for decoration.
The chemical name for Plaster of Paris is calcium sulphate ______.
The chemical name for Plaster of Paris is calcium sulphate ______.
The common name for the compound CaOCl2 is ______ powder.
The common name for the compound CaOCl2 is ______ powder.
A treatment with chlorine yields ______ powder.
A treatment with chlorine yields ______ powder.
A solution of sodium ______ is heated creates a chemical reaction.
A solution of sodium ______ is heated creates a chemical reaction.
When an acid reacts with a metal, ______ gas is released.
When an acid reacts with a metal, ______ gas is released.
When mixed with water, Plaster of Paris changes to ______.
When mixed with water, Plaster of Paris changes to ______.
Plaster of Paris is a white ______.
Plaster of Paris is a white ______.
The chemical formula for Plaster of Paris is CaSO4.______H2O.
The chemical formula for Plaster of Paris is CaSO4.______H2O.
Plaster of Paris is used for making toys, materials for ______ and for making surfaces smooth.
Plaster of Paris is used for making toys, materials for ______ and for making surfaces smooth.
Two formula units of CaSO4 share one molecule of ______ in Plaster of Paris.
Two formula units of CaSO4 share one molecule of ______ in Plaster of Paris.
When Plaster of Paris reacts with water, it forms a hard solid ______.
When Plaster of Paris reacts with water, it forms a hard solid ______.
Plaster of Paris is a calcium sulfate ______.
Plaster of Paris is a calcium sulfate ______.
Plaster of Paris is chemically known as calcium sulphate ______.
Plaster of Paris is chemically known as calcium sulphate ______.
Plaster of Paris is used for making ______ and decorative materials.
Plaster of Paris is used for making ______ and decorative materials.
Plaster of Paris is used for making surfaces ______
Plaster of Paris is used for making surfaces ______
Acid-base indicators are ______ used to show the presence of acids and bases.
Acid-base indicators are ______ used to show the presence of acids and bases.
The acidic nature of a substance is due to the formation of ______ ions in solution.
The acidic nature of a substance is due to the formation of ______ ions in solution.
When an acid reacts with metal carbonate, it gives salt, water, and ______ gas.
When an acid reacts with metal carbonate, it gives salt, water, and ______ gas.
A neutral solution has a pH of exactly ______.
A neutral solution has a pH of exactly ______.
When acids and bases neutralize each other, they form salts and ______.
When acids and bases neutralize each other, they form salts and ______.
The strength of an acid or an alkali is measured using the ______ scale.
The strength of an acid or an alkali is measured using the ______ scale.
Mixing concentrated acids or bases with water is a highly ______ process.
Mixing concentrated acids or bases with water is a highly ______ process.
Living beings perform metabolic activities within an optimal pH ______.
Living beings perform metabolic activities within an optimal pH ______.
Water of crystallisation refers to the fixed number of water molecules in one formula unit of a ______.
Water of crystallisation refers to the fixed number of water molecules in one formula unit of a ______.
A solution that can react with crushed egg-shells to produce a gas is likely to contain ______.
A solution that can react with crushed egg-shells to produce a gas is likely to contain ______.
To neutralize 20 mL of NaOH, the same solution of HCl required is ______ mL.
To neutralize 20 mL of NaOH, the same solution of HCl required is ______ mL.
Compounds like alcohols and glucose are not categorized as acids although they contain ______.
Compounds like alcohols and glucose are not categorized as acids although they contain ______.
Salts have various ______ in everyday life and in industries.
Salts have various ______ in everyday life and in industries.
The pH scale ranges from 0 to ______.
The pH scale ranges from 0 to ______.
An acidic solution has a pH less than ______.
An acidic solution has a pH less than ______.
A basic solution has a pH more than ______.
A basic solution has a pH more than ______.
Living beings carry out their metabolic activities within an ______ pH range.
Living beings carry out their metabolic activities within an ______ pH range.
Acids and bases ______ each other to form salts and water.
Acids and bases ______ each other to form salts and water.
Water of crystallisation is the fixed number of water molecules present in one formula unit of a ______.
Water of crystallisation is the fixed number of water molecules present in one formula unit of a ______.
A solution that turns red litmus blue is likely to have a pH of ______.
A solution that turns red litmus blue is likely to have a pH of ______.
______ is used to treat indigestion.
______ is used to treat indigestion.
Acids and bases neutralize each other to form corresponding ______ and water.
Acids and bases neutralize each other to form corresponding ______ and water.
Living beings carry out their metabolic activities within an optimal pH ______.
Living beings carry out their metabolic activities within an optimal pH ______.
Water of ______ is the fixed number of water molecules present in one formula unit of a salt.
Water of ______ is the fixed number of water molecules present in one formula unit of a salt.
A solution that reacts with crushed egg-shells to give a gas that turns lime-water milky likely contains ______.
A solution that reacts with crushed egg-shells to give a gas that turns lime-water milky likely contains ______.
The reaction between dilute sulphuric acid and zinc granules produces ______.
The reaction between dilute sulphuric acid and zinc granules produces ______.
When 10 mL of a solution of NaOH is neutralized by 8 mL of HCl, 20 mL of NaOH will require ______ mL of HCl to neutralize.
When 10 mL of a solution of NaOH is neutralized by 8 mL of HCl, 20 mL of NaOH will require ______ mL of HCl to neutralize.
Compounds such as alcohols and glucose contain hydrogen but are not categorized as ______.
Compounds such as alcohols and glucose contain hydrogen but are not categorized as ______.
Salts have various uses in everyday life and in ______.
Salts have various uses in everyday life and in ______.
Acids do not show acidic behavior in the absence of ______.
Acids do not show acidic behavior in the absence of ______.
A solution with a pH of 1 is considered ______ acidic.
A solution with a pH of 1 is considered ______ acidic.
A solution with a pH of 11 is considered strongly ______.
A solution with a pH of 11 is considered strongly ______.
A solution with a pH of 9 is considered ______ alkaline.
A solution with a pH of 9 is considered ______ alkaline.
Fizzing will occur more vigorously in the test tube with ______ acid.
Fizzing will occur more vigorously in the test tube with ______ acid.
As fresh milk turns into curd, its pH will ______.
As fresh milk turns into curd, its pH will ______.
Adding baking soda to fresh milk shifts its pH to slightly ______.
Adding baking soda to fresh milk shifts its pH to slightly ______.
Plaster of Paris should be stored in a moisture-proof container because it will react with ______
Plaster of Paris should be stored in a moisture-proof container because it will react with ______
Fizzing will occur more vigorously in the test tube containing ______ acid.
Fizzing will occur more vigorously in the test tube containing ______ acid.
Plaster of Paris should be stored in a moisture-proof container because it absorbs ______.
Plaster of Paris should be stored in a moisture-proof container because it absorbs ______.
A neutralisation reaction forms salt and ______.
A neutralisation reaction forms salt and ______.
Solution ______ has a pH of 7, indicating it is neutral.
Solution ______ has a pH of 7, indicating it is neutral.
Test tube A will show more vigorous fizzing when magnesium is reacted with ______.
Test tube A will show more vigorous fizzing when magnesium is reacted with ______.
As fresh milk turns into curd, its pH is expected to ______.
As fresh milk turns into curd, its pH is expected to ______.
A milkman adds baking soda to fresh milk to shift its pH to slightly ______.
A milkman adds baking soda to fresh milk to shift its pH to slightly ______.
Plaster of Paris should be stored in a moisture-proof container to prevent it from ______.
Plaster of Paris should be stored in a moisture-proof container to prevent it from ______.
A neutralization reaction is a chemical reaction between an acid and a ______.
A neutralization reaction is a chemical reaction between an acid and a ______.
To prepare your own indicator, you can crush ______ in a mortar.
To prepare your own indicator, you can crush ______ in a mortar.
In the experiment, the test tubes should be labeled A, B, C, and ______.
In the experiment, the test tubes should be labeled A, B, C, and ______.
The reaction of acids with metal hydrogencarbonates is used in the fire ______.
The reaction of acids with metal hydrogencarbonates is used in the fire ______.
A soda-acid fire extinguisher uses sodium ______ solution.
A soda-acid fire extinguisher uses sodium ______ solution.
Dilute sulphuric acid is contained within an ______ tube in a soda-acid fire extinguisher.
Dilute sulphuric acid is contained within an ______ tube in a soda-acid fire extinguisher.
To activate the fire extinguisher, you must tilt the wash-bottle so the acid mixes with the sodium hydrogencarbonate ______.
To activate the fire extinguisher, you must tilt the wash-bottle so the acid mixes with the sodium hydrogencarbonate ______.
The fire extinguisher works by producing a ______ coming out of the nozzle.
The fire extinguisher works by producing a ______ coming out of the nozzle.
The generated carbon dioxide is used to put out a ______ candle.
The generated carbon dioxide is used to put out a ______ candle.
The reaction of acids with metal hydrogencarbonates produces ______.
The reaction of acids with metal hydrogencarbonates produces ______.
In a soda-acid fire extinguisher, dilute sulphuric acid is placed in an ______ tube.
In a soda-acid fire extinguisher, dilute sulphuric acid is placed in an ______ tube.
Sodium hydrogencarbonate solution is placed in the ______ of the fire extinguisher.
Sodium hydrogencarbonate solution is placed in the ______ of the fire extinguisher.
Tilting the wash-bottle allows the acid to mix with the ______ solution.
Tilting the wash-bottle allows the acid to mix with the ______ solution.
The discharge from the nozzle of the fire extinguisher is ______.
The discharge from the nozzle of the fire extinguisher is ______.
A soda-acid fire extinguisher uses a reaction with a metal ______ to produce carbon dioxide.
A soda-acid fire extinguisher uses a reaction with a metal ______ to produce carbon dioxide.
In the experiment, 20 mL of sodium ______ solution is used.
In the experiment, 20 mL of sodium ______ solution is used.
A dilute solution of ______ acid is used in the ignition tube.
A dilute solution of ______ acid is used in the ignition tube.
The sodium hydrogencarbonate solution is in a ______.
The sodium hydrogencarbonate solution is in a ______.
When the acid mixes with the sodium hydrogencarbonate, a ______ is discharged from the nozzle.
When the acid mixes with the sodium hydrogencarbonate, a ______ is discharged from the nozzle.
The experiment demonstrates how a soda-acid fire extinguisher produces ______.
The experiment demonstrates how a soda-acid fire extinguisher produces ______.
Flashcards
Acid
Acid
A substance with a sour taste, changes blue litmus paper to red, and can neutralize bases.
Base
Base
A substance with a bitter taste, changes red litmus paper to blue, and can neutralize acids.
Indicator
Indicator
A substance that can indicate the presence of an acid or base by changing color.
Litmus
Litmus
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Neutralization
Neutralization
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Salt
Salt
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Neutral Solution
Neutral Solution
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Acidic Solution
Acidic Solution
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Basic Solution
Basic Solution
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pH adjustment
pH adjustment
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Acid-base indicator
Acid-base indicator
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Natural indicator
Natural indicator
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Olfactory indicator
Olfactory indicator
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Identifying solutions with litmus paper
Identifying solutions with litmus paper
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Reaction of metals with acids
Reaction of metals with acids
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Soap solution test
Soap solution test
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Vanilla and clove oil as olfactory indicators
Vanilla and clove oil as olfactory indicators
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Examples of olfactory indicators
Examples of olfactory indicators
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What does an acid react with to produce hydrogen gas?
What does an acid react with to produce hydrogen gas?
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What gas is produced when an acid reacts with a metal?
What gas is produced when an acid reacts with a metal?
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Name some acids that react with metals.
Name some acids that react with metals.
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What happens when zinc reacts with dilute sulphuric acid?
What happens when zinc reacts with dilute sulphuric acid?
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How do we test for hydrogen gas?
How do we test for hydrogen gas?
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How do we know if a solution is acidic or basic?
How do we know if a solution is acidic or basic?
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What is litmus paper?
What is litmus paper?
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How does litmus paper change color in acidic and basic solutions?
How does litmus paper change color in acidic and basic solutions?
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Vanilla and Clove Oil as Indicators
Vanilla and Clove Oil as Indicators
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Zinc and Dilute Sulphuric Acid Reaction
Zinc and Dilute Sulphuric Acid Reaction
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Testing for Hydrogen Gas
Testing for Hydrogen Gas
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Soap Solution for Testing Hydrogen Gas
Soap Solution for Testing Hydrogen Gas
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Identifying Acids & Bases with Olfactory Indicators
Identifying Acids & Bases with Olfactory Indicators
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Acids and Bases reacting with Metals
Acids and Bases reacting with Metals
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Reaction of Acids with Metals
Reaction of Acids with Metals
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Common Acids reacting with Metals
Common Acids reacting with Metals
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Displacement Reaction
Displacement Reaction
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Reaction of Metal Carbonates with Acids
Reaction of Metal Carbonates with Acids
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Reaction of Metal Hydrogencarbonates with Acids
Reaction of Metal Hydrogencarbonates with Acids
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Metals and Acids Reaction
Metals and Acids Reaction
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Hydrogen Gas Test
Hydrogen Gas Test
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Metal Carbonates and Acids
Metal Carbonates and Acids
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Metal Hydrogencarbonates and Acids
Metal Hydrogencarbonates and Acids
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Sodium Zincate
Sodium Zincate
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Metal Reactivity and Acids
Metal Reactivity and Acids
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Limewater Test
Limewater Test
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Common Acids and Metals
Common Acids and Metals
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Metal-Acid Reaction
Metal-Acid Reaction
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Metals and Acids
Metals and Acids
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Neutralization Reaction
Neutralization Reaction
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Using indicators to identify acids and bases
Using indicators to identify acids and bases
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Reaction of metal carbonates/hydrogencarbonates with acids
Reaction of metal carbonates/hydrogencarbonates with acids
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Calcium Carbonate and Acids
Calcium Carbonate and Acids
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Reaction of Metal Oxides with Acids
Reaction of Metal Oxides with Acids
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Reaction of Carbon Dioxide with Calcium Carbonate
Reaction of Carbon Dioxide with Calcium Carbonate
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Reaction of Metal Carbonates and Hydrogencarbonates with Acids
Reaction of Metal Carbonates and Hydrogencarbonates with Acids
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Reaction of Copper Oxide with Acid
Reaction of Copper Oxide with Acid
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Forms of Calcium Carbonate
Forms of Calcium Carbonate
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Phenolphthalein as an Indicator
Phenolphthalein as an Indicator
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Reaction of NaOH with HCl
Reaction of NaOH with HCl
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Calcium Carbonate
Calcium Carbonate
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Metal Carbonate + Acid
Metal Carbonate + Acid
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Metal Oxide + Acid
Metal Oxide + Acid
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Metal + Acid
Metal + Acid
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Metal Carbonate/Hydrogencarbonate + Acid
Metal Carbonate/Hydrogencarbonate + Acid
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Why are metallic oxides called basic oxides?
Why are metallic oxides called basic oxides?
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Why are non-metallic oxides called acidic oxides?
Why are non-metallic oxides called acidic oxides?
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What happens when an acid reacts with a metal?
What happens when an acid reacts with a metal?
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What do all acids have in common?
What do all acids have in common?
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Are all compounds with hydrogen acidic?
Are all compounds with hydrogen acidic?
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Why should curd and sour substances not be kept in brass or copper vessels?
Why should curd and sour substances not be kept in brass or copper vessels?
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Which gas is liberated when an acid reacts with a metal? How can you test for it?
Which gas is liberated when an acid reacts with a metal? How can you test for it?
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NaOH + HCl reaction
NaOH + HCl reaction
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Displacement reaction with metals and acids
Displacement reaction with metals and acids
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Soap solution test for hydrogen gas
Soap solution test for hydrogen gas
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Metal reactivity with acids
Metal reactivity with acids
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Metallic oxides are basic oxides
Metallic oxides are basic oxides
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Non-metallic oxides are acidic oxides
Non-metallic oxides are acidic oxides
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What makes a substance acidic?
What makes a substance acidic?
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Is HCl gas acidic?
Is HCl gas acidic?
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How does HCl become acidic?
How does HCl become acidic?
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What is a hydronium ion?
What is a hydronium ion?
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What makes a substance basic?
What makes a substance basic?
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How does NaOH become basic?
How does NaOH become basic?
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Why does HCl need water to be acidic?
Why does HCl need water to be acidic?
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Do hydrogen ions exist independently?
Do hydrogen ions exist independently?
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Compare acids and bases in water.
Compare acids and bases in water.
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What happens when acid reacts with base?
What happens when acid reacts with base?
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Caution when mixing acid and water?
Caution when mixing acid and water?
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What is an alkali?
What is an alkali?
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What happens when an acid reacts with a base?
What happens when an acid reacts with a base?
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What do all acids produce in water?
What do all acids produce in water?
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What do all bases produce in water?
What do all bases produce in water?
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How to test for hydrogen gas?
How to test for hydrogen gas?
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What happens when a metal carbonate reacts with an acid?
What happens when a metal carbonate reacts with an acid?
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What happens when a metal oxide reacts with acid?
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What happens when a non-metallic oxide reacts with a base?
What happens when a non-metallic oxide reacts with a base?
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Dissolving Acids and Bases in Water
Dissolving Acids and Bases in Water
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What makes a compound acidic?
What makes a compound acidic?
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What makes a compound basic?
What makes a compound basic?
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What is neutralization reaction?
What is neutralization reaction?
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Why is dissolving acids and bases in water dangerous?
Why is dissolving acids and bases in water dangerous?
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Why are HCl, HNO3 acidic but not alcohols & glucose?
Why are HCl, HNO3 acidic but not alcohols & glucose?
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Why do acid solutions conduct electricity?
Why do acid solutions conduct electricity?
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Why doesn't dry HCl gas change litmus paper?
Why doesn't dry HCl gas change litmus paper?
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Why add acid to water, not water to acid?
Why add acid to water, not water to acid?
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How does diluting acid affect H+ ion concentration?
How does diluting acid affect H+ ion concentration?
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How does excess base affect OH- concentration?
How does excess base affect OH- concentration?
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What is the pH scale?
What is the pH scale?
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How does pH relate to acidity and alkalinity?
How does pH relate to acidity and alkalinity?
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What is a universal indicator?
What is a universal indicator?
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What happens when you add base to an acid?
What happens when you add base to an acid?
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Why are HCl, HNO3, etc., acidic in water but not alcohol or glucose?
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Why does an acid solution conduct electricity?
Why does an acid solution conduct electricity?
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Why doesn't dry HCl gas change litmus paper color?
Why doesn't dry HCl gas change litmus paper color?
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How does diluting an acid affect hydronium ion concentration?
How does diluting an acid affect hydronium ion concentration?
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How does adding excess base affect hydroxide ion concentration?
How does adding excess base affect hydroxide ion concentration?
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How does pH relate to H+ ion concentration?
How does pH relate to H+ ion concentration?
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How do we determine the strength of an acid or base?
How do we determine the strength of an acid or base?
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What are strong and weak acids and bases?
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What makes a solution acidic?
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What makes a solution basic?
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What is a neutral solution?
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What is acid rain?
What is acid rain?
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What is neutralization?
What is neutralization?
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What happens when a metal reacts with an acid?
What happens when a metal reacts with an acid?
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What happens when a metal oxide reacts with an acid?
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What are alkalis?
What are alkalis?
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What makes an acid strong or weak?
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Why are metallic oxides considered basic?
Why are metallic oxides considered basic?
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Why are non-metallic oxides considered acidic?
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How do you test for hydrogen gas?
How do you test for hydrogen gas?
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What determines whether an acid or base is strong or weak?
What determines whether an acid or base is strong or weak?
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How does acid rain impact aquatic life?
How does acid rain impact aquatic life?
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What's the normal pH range for the human body?
What's the normal pH range for the human body?
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What is the pH sensitivity of living organisms?
What is the pH sensitivity of living organisms?
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What is a pH Indicator?
What is a pH Indicator?
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What is a metal's reaction with an acid?
What is a metal's reaction with an acid?
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Venus' Atmosphere
Venus' Atmosphere
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Stomach Acid
Stomach Acid
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Indigestion and Acid
Indigestion and Acid
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Antacids
Antacids
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Tooth Decay and pH
Tooth Decay and pH
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Tooth Enamel and pH
Tooth Enamel and pH
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Bacteria and Acid Production
Bacteria and Acid Production
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Bee Sting Acid
Bee Sting Acid
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Nettle Sting Acid
Nettle Sting Acid
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Soil pH and Plants
Soil pH and Plants
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What makes Venus's atmosphere unique?
What makes Venus's atmosphere unique?
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How does soil pH affect plants?
How does soil pH affect plants?
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What acid does our stomach produce?
What acid does our stomach produce?
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What causes indigestion?
What causes indigestion?
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How do antacids work?
How do antacids work?
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When does tooth decay start?
When does tooth decay start?
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How do bacteria contribute to tooth decay?
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Why does a bee sting hurt?
Why does a bee sting hurt?
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What causes the burning pain from nettle leaves?
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What's chemical warfare in nature?
What's chemical warfare in nature?
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Hydrochloric acid in stomach
Hydrochloric acid in stomach
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Indigestion and excess acid
Indigestion and excess acid
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Antacids for indigestion
Antacids for indigestion
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Mouth bacteria and acid
Mouth bacteria and acid
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Bee sting and acid
Bee sting and acid
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Neutralizing bee sting
Neutralizing bee sting
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Nettle leaves' defense
Nettle leaves' defense
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What is pH?
What is pH?
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How does hydrogen ion concentration affect acidity/basicity?
How does hydrogen ion concentration affect acidity/basicity?
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Do basic solutions have H+ ions?
Do basic solutions have H+ ions?
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Why would a farmer use lime in soil?
Why would a farmer use lime in soil?
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What are salts?
What are salts?
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What is the acid in vinegar?
What is the acid in vinegar?
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What is the acid in sour milk or curd?
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What is the acid in oranges and lemons?
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What is the acid in ant and nettle stings?
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What is the acid in tamarind?
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What is an acidic solution?
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What are metallic oxides?
What are metallic oxides?
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What is important to remember when dissolving acids or bases in water?
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pH
pH
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What is the pH of salts?
What is the pH of salts?
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What is common salt?
What is common salt?
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Where does salt come from?
Where does salt come from?
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What defines a salt family?
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What are some common salts?
What are some common salts?
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How do you measure the pH of a salt?
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How can the pH of a salt identify its components?
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What happens when a strong acid reacts with a strong base?
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What happens when a strong acid reacts with a weak base?
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What happens when a weak acid reacts with a strong base?
What happens when a weak acid reacts with a strong base?
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Acidic Salts
Acidic Salts
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Basic Salts
Basic Salts
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Neutral Salts
Neutral Salts
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Identifying Acids by Reaction with Metals
Identifying Acids by Reaction with Metals
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pH of Salts
pH of Salts
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Salt Families
Salt Families
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What is an indicator?
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What happens during neutralization?
What happens during neutralization?
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What is metal reactivity with acids?
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Why should acids and bases be dissolved in water carefully?
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Why are metallic oxides basic?
Why are metallic oxides basic?
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Why are non-metallic oxides acidic?
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Common Salt: Raw Material for Chemicals
Common Salt: Raw Material for Chemicals
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Chlor-Alkali Process
Chlor-Alkali Process
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Bleaching Powder: Production
Bleaching Powder: Production
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Sodium Hydroxide (NaOH)
Sodium Hydroxide (NaOH)
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Chlorine Gas (Cl2)
Chlorine Gas (Cl2)
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Hydrogen Gas (H2)
Hydrogen Gas (H2)
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Products of the Chlor-Alkali Process
Products of the Chlor-Alkali Process
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Baking Soda (NaHCO3)
Baking Soda (NaHCO3)
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Washing Soda (Na2CO3)
Washing Soda (Na2CO3)
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What is the importance of common salt?
What is the importance of common salt?
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How is sodium hydroxide produced?
How is sodium hydroxide produced?
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What products are generated in the chlor-alkali process?
What products are generated in the chlor-alkali process?
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How is bleaching powder manufactured?
How is bleaching powder manufactured?
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Where are the products of chlor-alkali process formed?
Where are the products of chlor-alkali process formed?
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What are the uses of sodium hydroxide?
What are the uses of sodium hydroxide?
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What is the importance of chlorine gas?
What is the importance of chlorine gas?
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What are some uses of hydrogen gas?
What are some uses of hydrogen gas?
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Why is the chlor-alkali process important?
Why is the chlor-alkali process important?
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How is sodium hydroxide made?
How is sodium hydroxide made?
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What are the products of the chlor-alkali process?
What are the products of the chlor-alkali process?
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How is bleaching powder made?
How is bleaching powder made?
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How is baking soda made?
How is baking soda made?
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How is washing soda made?
How is washing soda made?
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What are some uses for sodium hydroxide?
What are some uses for sodium hydroxide?
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What are some uses for bleaching powder?
What are some uses for bleaching powder?
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Baking Soda
Baking Soda
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Washing Soda
Washing Soda
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How does baking soda make bread rise?
How does baking soda make bread rise?
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What is bleaching powder used for?
What is bleaching powder used for?
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What is bleaching powder's role in chemical industries?
What is bleaching powder's role in chemical industries?
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Why is baking soda an antacid?
Why is baking soda an antacid?
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How does baking powder work?
How does baking powder work?
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What is sodium hydrogencarbonate used for?
What is sodium hydrogencarbonate used for?
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How does baking soda act as an antacid?
How does baking soda act as an antacid?
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Why does baking soda make baked goods rise?
Why does baking soda make baked goods rise?
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Bleaching Powder
Bleaching Powder
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Baking Soda: NaHCO3
Baking Soda: NaHCO3
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Baking Powder
Baking Powder
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Baking Soda as Antacid
Baking Soda as Antacid
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Washing Soda: Na2CO3.10H2O
Washing Soda: Na2CO3.10H2O
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Sodium Hydrogencarbonate (NaHCO3)
Sodium Hydrogencarbonate (NaHCO3)
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Baking Soda to Washing Soda
Baking Soda to Washing Soda
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What is the chemical name for baking soda?
What is the chemical name for baking soda?
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Why is baking soda used in baking?
Why is baking soda used in baking?
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What is baking powder?
What is baking powder?
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What are some other uses of baking soda?
What are some other uses of baking soda?
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What is washing soda?
What is washing soda?
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What is the chemical reaction for baking soda production?
What is the chemical reaction for baking soda production?
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Why is washing soda a basic salt?
Why is washing soda a basic salt?
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What is the chemical equation for washing soda formation?
What is the chemical equation for washing soda formation?
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What is water of crystallisation?
What is water of crystallisation?
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Why does copper sulphate change colour when heated?
Why does copper sulphate change colour when heated?
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What is the chemical formula for hydrated copper sulphate?
What is the chemical formula for hydrated copper sulphate?
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Why is Na2CO3.10H2O not wet?
Why is Na2CO3.10H2O not wet?
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What are some uses of washing soda?
What are some uses of washing soda?
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What is the chemical formula for gypsum, and what does it indicate?
What is the chemical formula for gypsum, and what does it indicate?
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What happens when you heat copper sulphate crystals?
What happens when you heat copper sulphate crystals?
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What happens when you add water to heated copper sulphate crystals?
What happens when you add water to heated copper sulphate crystals?
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What are some uses of sodium hydrogencarbonate?
What are some uses of sodium hydrogencarbonate?
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What are some important uses of sodium carbonate and sodium hydrogencarbonate?
What are some important uses of sodium carbonate and sodium hydrogencarbonate?
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Water of crystallization
Water of crystallization
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Hydrated salt
Hydrated salt
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Removing water of crystallization
Removing water of crystallization
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Chemical formula of a hydrated salt
Chemical formula of a hydrated salt
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What is Na2CO3.10H2O?
What is Na2CO3.10H2O?
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What is CaSO4.2H2O?
What is CaSO4.2H2O?
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What is CaSO4.2H2O used for?
What is CaSO4.2H2O used for?
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What happens when copper sulfate crystals are heated?
What happens when copper sulfate crystals are heated?
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How does the color of copper sulfate change with heating and water?
How does the color of copper sulfate change with heating and water?
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What is the difference between a dry salt and a hydrated salt?
What is the difference between a dry salt and a hydrated salt?
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Copper Sulphate and Water of Crystallisation
Copper Sulphate and Water of Crystallisation
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Chemical Formula of Hydrated Copper Sulphate
Chemical Formula of Hydrated Copper Sulphate
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Chemical Formula of Hydrated Sodium Carbonate
Chemical Formula of Hydrated Sodium Carbonate
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Gypsum and Water of Crystallisation
Gypsum and Water of Crystallisation
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Uses of Washing Soda
Uses of Washing Soda
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Uses of Baking Soda
Uses of Baking Soda
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Importance of Sodium Carbonate and Hydrogen Carbonate
Importance of Sodium Carbonate and Hydrogen Carbonate
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Understanding Water of Crystallisation
Understanding Water of Crystallisation
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What is Plaster of Paris?
What is Plaster of Paris?
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What are some applications of Plaster of Paris?
What are some applications of Plaster of Paris?
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Why is the formula for Plaster of Paris written as CaSO4.1/2H2O?
Why is the formula for Plaster of Paris written as CaSO4.1/2H2O?
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Why is calcium sulphate hemihydrate called 'Plaster of Paris'?
Why is calcium sulphate hemihydrate called 'Plaster of Paris'?
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What is the common name for CaOCl2?
What is the common name for CaOCl2?
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What substance yields bleaching powder when treated with chlorine?
What substance yields bleaching powder when treated with chlorine?
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What sodium compound is used for softening hard water?
What sodium compound is used for softening hard water?
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What happens when a solution of sodium hydrogencarbonate is heated?
What happens when a solution of sodium hydrogencarbonate is heated?
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What happens when Plaster of Paris reacts with water?
What happens when Plaster of Paris reacts with water?
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Why is Plaster of Paris called a "hemihydrate"?
Why is Plaster of Paris called a "hemihydrate"?
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What happens when sodium hydrogencarbonate is heated?
What happens when sodium hydrogencarbonate is heated?
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What is an acid-base indicator?
What is an acid-base indicator?
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What is the chemical formula for Plaster of Paris?
What is the chemical formula for Plaster of Paris?
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Why is it dangerous to mix concentrated acids or bases with water?
Why is it dangerous to mix concentrated acids or bases with water?
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Why is mixing concentrated acids or bases with water dangerous?
Why is mixing concentrated acids or bases with water dangerous?
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What happens when a metal carbonate or metal hydrogencarbonate reacts with an acid?
What happens when a metal carbonate or metal hydrogencarbonate reacts with an acid?
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What does the pH scale indicate?
What does the pH scale indicate?
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What happens when acids or bases are mixed with water?
What happens when acids or bases are mixed with water?
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How do acids and bases react?
How do acids and bases react?
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What is 'water of crystallization'?
What is 'water of crystallization'?
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Why is dissolving acids or bases in water dangerous?
Why is dissolving acids or bases in water dangerous?
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What are the properties of an acid?
What are the properties of an acid?
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What are the properties of a base?
What are the properties of a base?
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Why do acids not show acidic behavior in the absence of water?
Why do acids not show acidic behavior in the absence of water?
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What is the pH order of increasing hydrogen ion concentration?
What is the pH order of increasing hydrogen ion concentration?
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Which test tube will fizz more vigorously: HCl or CH3COOH?
Which test tube will fizz more vigorously: HCl or CH3COOH?
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How does the pH of milk change as it turns into curd?
How does the pH of milk change as it turns into curd?
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Why does adding baking soda make milk slightly alkaline?
Why does adding baking soda make milk slightly alkaline?
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Why does milk with baking soda take longer to turn into curd?
Why does milk with baking soda take longer to turn into curd?
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Why should Plaster of Paris be stored in a moisture-proof container?
Why should Plaster of Paris be stored in a moisture-proof container?
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What is a neutralization reaction? Give two examples.
What is a neutralization reaction? Give two examples.
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What are two uses of washing soda and baking soda?
What are two uses of washing soda and baking soda?
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How do you test the acidity or alkalinity of solutions using a natural indicator?
How do you test the acidity or alkalinity of solutions using a natural indicator?
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What does pH tell us about a solution?
What does pH tell us about a solution?
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Why does fizzing occur more vigorously in one test tube?
Why does fizzing occur more vigorously in one test tube?
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How does the pH of milk change when it turns into curd?
How does the pH of milk change when it turns into curd?
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Why does adding baking soda to milk affect curd formation?
Why does adding baking soda to milk affect curd formation?
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What is a neutralization reaction? Give examples.
What is a neutralization reaction? Give examples.
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Give two important uses of washing soda and baking soda.
Give two important uses of washing soda and baking soda.
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Identify the neutral solution.
Identify the neutral solution.
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Identify the strongly alkaline solution.
Identify the strongly alkaline solution.
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Why acids need water?
Why acids need water?
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pH and alkaline solutions
pH and alkaline solutions
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Why does HCl fizz more?
Why does HCl fizz more?
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Milk to curd pH change
Milk to curd pH change
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Baking soda in milk
Baking soda in milk
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Storing Plaster of Paris
Storing Plaster of Paris
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Uses of washing soda and baking soda
Uses of washing soda and baking soda
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Acid + Base reaction
Acid + Base reaction
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Acids and Bases in water
Acids and Bases in water
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Soda-Acid Fire Extinguisher
Soda-Acid Fire Extinguisher
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How do soda-acid fire extinguishers work?
How do soda-acid fire extinguishers work?
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How is a soda-acid fire extinguisher prepared?
How is a soda-acid fire extinguisher prepared?
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How does a soda-acid fire extinguisher put out a fire?
How does a soda-acid fire extinguisher put out a fire?
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Acid + Metal Hydrogencarbonate = CO2?
Acid + Metal Hydrogencarbonate = CO2?
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What gas is released from a soda-acid fire extinguisher?
What gas is released from a soda-acid fire extinguisher?
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Reaction of acids with metal hydrogencarbonates
Reaction of acids with metal hydrogencarbonates
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How soda-acid fire extinguishers work
How soda-acid fire extinguishers work
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Sodium hydrogencarbonate and acids
Sodium hydrogencarbonate and acids
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Preparing a soda-acid fire extinguisher
Preparing a soda-acid fire extinguisher
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Carbon dioxide and fire extinguishers
Carbon dioxide and fire extinguishers
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Effect of carbon dioxide on flame
Effect of carbon dioxide on flame
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What happens when an acid reacts with a metal hydrogencarbonate?
What happens when an acid reacts with a metal hydrogencarbonate?
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How is carbon dioxide used in fire extinguishers?
How is carbon dioxide used in fire extinguishers?
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What is sodium hydrogencarbonate and what does it do in fire extinguishers?
What is sodium hydrogencarbonate and what does it do in fire extinguishers?
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What is the reaction of acids with metal hydrogencarbonates used for?
What is the reaction of acids with metal hydrogencarbonates used for?
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How does a soda-acid fire extinguisher work?
How does a soda-acid fire extinguisher work?
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How do you use a soda-acid fire extinguisher?
How do you use a soda-acid fire extinguisher?
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Study Notes
Acids, Bases, and Salts
- Sour tastes are due to acids, bitter tastes are due to bases
- Acidic problems can be solved by remedies like lemon juice or baking soda solutions
- Acids change blue litmus to red, bases change red litmus to blue
- Litmus is a natural indicator
- Turmeric is a natural indicator
- Synthetic indicators like methyl orange and phenolphthalein can test for acids and bases
- Litmus is a purple dye extracted from lichen and used as an indicator
- Litmus is purple in neutral solution
- Other natural indicators include red cabbage leaves, turmeric, and coloured petals of some flowers (Hydrangea, Petunia, Geranium)
- A stain of curry on a white cloth turns reddish-brown when soap is scrubbed on it, then yellow again when rinsed with water
- Hydrochloric acid (HCl), sulphuric acid (H₂SO₄), nitric acid (HNO₃), acetic acid (CH₃COOH), sodium hydroxide (NaOH), calcium hydroxide [Ca(OH)₂], potassium hydroxide (KOH), magnesium hydroxide [Mg(OH)₂], and ammonium hydroxide (NH₄OH) are examples of acids and bases
- Indicators can be used to determine if a substance is acidic or basic
- Indicators change color in acidic or basic solutions. Red litmus turns red in an acid and blue litmus turns blue in a base.
- Acids are sour; bases are bitter in taste
- Litmus solution is a purple dye extracted from a plant called lichen.
- Turmeric can be an indicator that changes color in acidic or basic solutions.
- Red cabbage leaves, turmeric, coloured petals (Hydrangea, Petunia, Geranium) can also be used as indicators.
- Substances can be tested for acidity or basicity without tasting them.
- Acid-base indicators are substances that change color in an acidic or basic solution
- Some indicators are extracted from plants such as lichen.
- Litmus solution is purple in neutral conditions, but it changes colour in the presence of acid or base
- Other natural indicators exist like red cabbage leaves, turmeric and coloured petals from flowers.
- Litmus solution is a purple dye extracted from a plant called lichen.
- Substances like vanilla, onion, and clove can be used to test for acids and bases based on their odors
- Chopped onions in a bag with cloth can be olfactory indicators for testing acids and bases (by odour changes)
- Vanilla, onion, cloves are olfactory indicators for acids and bases
- Phenolphthalein is a synthetic indicator that changes colour in the presence of acids and bases.
- Metal oxide + acid → salt + water.
- Metal carbonate (s) + acid(aq) → Salt(aq) + Water(l) + Carbon dioxide(g)
- Metal hydrogencarbonate(s) + acid(aq) → Salt(aq) + Water(l) + Carbon dioxide(g)
- Olfactory indicators like onion, cloves, vanilla etc change odor in presence of acids and bases
- Some finely chopped onions in a bag can be olfactory indicators for testing acids and bases (by odour changes)
- Vanilla, onion, cloves are olfactory indicators for acids and bases
- Phenolphthalein is a synthetic indicator that changes colour in the presence of acids and bases.
- Metal oxide + acid → salt + water.
- Zinc reacts with dilute sulfuric acid to produce hydrogen gas.
- A few pieces of granulated zinc metal in a test tube with 2 mL of sodium hydroxide solution and warmed will produce hydrogen gas. (Zinc reacts with sodium hydroxide solution and a heat source to create hydrogen gas)
- The reaction of a metal with an acid can be summarised as Acid + Metal → Salt + Hydrogen gas. (The reaction between the metal and the acid produces a salt and hydrogen gas.)
- The reaction between sodium carbonate and hydrochloric acid produces sodium chloride, water, and carbon dioxide gas.
- The reaction of sodium hydrogencarbonate and hydrochloric acid produces sodium chloride, water, and carbon dioxide gas.
- The reaction between acids and bases produces a salt and water. (Base + Acid → Salt + Water)
- Zinc reacts with dilute sulfuric acid to produce hydrogen gas, which can be tested by burning it.
- A few pieces of zinc in a test tube with dilute sulfuric acid produce hydrogen gas that can be burned with a pop sound.
- 2NaOH(aq) + Zn(s) → Na₂ZnO₂(s) + H₂(g) (Sodium zincate)
- 2NaOH(aq) + Zn(s) → Na₂ZnO₂(aq) + H₂(g) (Sodium zincate)
- Alkali + Metal → Salt + Hydrogen
- Metal reacts with acid to produce hydrogen gas
- A few pieces of zinc metal in dilute sulfuric acid causes the formation of hydrogen gas that can be burned.
- When zinc reacts with dilute sulfuric acid, it forms zinc sulfate along with hydrogen gas
- A burning substance produces a pop sound when hydrogen gas is ignited.
- Metal carbonates and metal hydrogencarbonates react with acids to produce a salt, water and carbon dioxide
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