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.
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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.
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Turmeric is another natural ______ used as an indicator.
Turmeric is another natural ______ used as an indicator.
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Litmus solution is extracted from ______.
Litmus solution is extracted from ______.
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When neutral, litmus solution appears ______.
When neutral, litmus solution appears ______.
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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.
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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.
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The color of red litmus changes to ______ when exposed to a base.
The color of red litmus changes to ______ when exposed to a base.
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A stain of curry becomes reddish-brown when scrubbed with ______.
A stain of curry becomes reddish-brown when scrubbed with ______.
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When washing a cloth scrubbed with soap, it turns ______ again after rinsing.
When washing a cloth scrubbed with soap, it turns ______ again after rinsing.
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Litmus is obtained from ______, which is part of the Thallophyta division.
Litmus is obtained from ______, which is part of the Thallophyta division.
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The sour taste of food is primarily caused by ______ in the food.
The sour taste of food is primarily caused by ______ in the food.
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We can use ______ indicators to test for acids and bases.
We can use ______ indicators to test for acids and bases.
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Turmeric is also known as a natural ______ in acid-base reactions.
Turmeric is also known as a natural ______ in acid-base reactions.
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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 ______.
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After neutralizing acidity, a ______ solution is formed.
After neutralizing acidity, a ______ solution is formed.
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Hydrangea flowers can indicate the presence of ______ in a solution.
Hydrangea flowers can indicate the presence of ______ in a solution.
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The bitter taste of food is due to the presence of ______.
The bitter taste of food is due to the presence of ______.
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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 ______.
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Acids and bases ______ each other’s effects.
Acids and bases ______ each other’s effects.
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Acids change the color of blue litmus to ______.
Acids change the color of blue litmus to ______.
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Bases change the color of red litmus to ______.
Bases change the color of red litmus to ______.
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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.
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Phenolphthalein is a ______ indicator.
Phenolphthalein is a ______ indicator.
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The litmus solution is extracted from a plant called ______.
The litmus solution is extracted from a plant called ______.
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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 ______.
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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.
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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.
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A basic solution can be identified if red litmus paper turns ______.
A basic solution can be identified if red litmus paper turns ______.
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Testing with ______ litmus paper will help identify basic solutions.
Testing with ______ litmus paper will help identify basic solutions.
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In laboratory tests, phenolphthalein acts as an ______ indicator.
In laboratory tests, phenolphthalein acts as an ______ indicator.
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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.
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Olfactory indicators change their ______ when exposed to acidic or basic environments.
Olfactory indicators change their ______ when exposed to acidic or basic environments.
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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.
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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 ______.
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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.
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The basic solution of sodium hydroxide can be tested with ______ litmus paper.
The basic solution of sodium hydroxide can be tested with ______ litmus paper.
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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 ______.
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Hydrochloric acid, sulphuric acid, and nitric acid are examples of ______.
Hydrochloric acid, sulphuric acid, and nitric acid are examples of ______.
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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.
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Indicators like phenolphthalein can change color when exposed to ______ solutions.
Indicators like phenolphthalein can change color when exposed to ______ solutions.
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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 ______.
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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 ______.
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The basic compound sodium hydroxide is often abbreviated as ______.
The basic compound sodium hydroxide is often abbreviated as ______.
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Indicators like methyl orange and phenolphthalein are classified as ______ indicators.
Indicators like methyl orange and phenolphthalein are classified as ______ indicators.
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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 ______.
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Substances whose odour changes in acidic or basic media are called ______ indicators.
Substances whose odour changes in acidic or basic media are called ______ indicators.
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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.
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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
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In the lab, ______ and sulphuric acid (H2SO4) are examples of acids.
In the lab, ______ and sulphuric acid (H2SO4) are examples of acids.
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______ 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.
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When testing with litmus, a base will turn blue ______ paper.
When testing with litmus, a base will turn blue ______ paper.
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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.
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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.
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Using litmus, an ______ solution causes blue litmus paper to turn red.
Using litmus, an ______ solution causes blue litmus paper to turn red.
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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.
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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.
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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.
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When zinc granules react with dilute sulphuric acid, a gas is ______.
When zinc granules react with dilute sulphuric acid, a gas is ______.
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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.
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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 ______.
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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 ______.
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Vanilla, onion, and clove can be used as ______ indicators
Vanilla, onion, and clove can be used as ______ indicators
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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.
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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 ______.
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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 ______
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Vanilla essence and clove oil can be used as ______ indicators.
Vanilla essence and clove oil can be used as ______ indicators.
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When dilute HCl is added to vanilla essence the ______ is noted.
When dilute HCl is added to vanilla essence the ______ is noted.
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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.
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The reaction between zinc granules and dilute sulphuric acid produces a ______.
The reaction between zinc granules and dilute sulphuric acid produces a ______.
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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 ______.
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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.
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In the experiment with metal and acid, dilute ______ acid is used.
In the experiment with metal and acid, dilute ______ acid is used.
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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 ______.
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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.
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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.
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To test the odour of substances, you can use dilute ______ essence.
To test the odour of substances, you can use dilute ______ essence.
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The reaction of zinc granules with dilute ______ acid produces hydrogen gas.
The reaction of zinc granules with dilute ______ acid produces hydrogen gas.
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When adding dilute ______ to the test, bubbles form in the soap solution.
When adding dilute ______ to the test, bubbles form in the soap solution.
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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.
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The gas evolved from the reaction is tested using a burning ______.
The gas evolved from the reaction is tested using a burning ______.
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Observations of reactions can indicate if the changes are ______ or different.
Observations of reactions can indicate if the changes are ______ or different.
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Rinsing cloth strips with water helps to check their ______.
Rinsing cloth strips with water helps to check their ______.
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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.
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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.
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Observing the surface of zinc granules can reveal the formation of ______.
Observing the surface of zinc granules can reveal the formation of ______.
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The reaction of a metal with an acid produces ______ gas.
The reaction of a metal with an acid produces ______ gas.
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Zinc metal reacts with sodium hydroxide solution to form sodium ______.
Zinc metal reacts with sodium hydroxide solution to form sodium ______.
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Sodium carbonate reacts with hydrochloric acid to produce ______ gas.
Sodium carbonate reacts with hydrochloric acid to produce ______ gas.
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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.
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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) + ______.
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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.
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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.
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The formula for sodium carbonate is ______.
The formula for sodium carbonate is ______.
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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.
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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.
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When a metal reacts with an acid a _______ is formed.
When a metal reacts with an acid a _______ is formed.
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The reaction of a metal with an acid produces hydrogen _______.
The reaction of a metal with an acid produces hydrogen _______.
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The chemical formula for sodium hydroxide is _______.
The chemical formula for sodium hydroxide is _______.
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When granulated zinc reacts with sodium hydroxide, _______ gas is released.
When granulated zinc reacts with sodium hydroxide, _______ gas is released.
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The product formed when zinc reacts with sodium hydroxide is called sodium _______.
The product formed when zinc reacts with sodium hydroxide is called sodium _______.
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The chemical formula for sodium carbonate is _______.
The chemical formula for sodium carbonate is _______.
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Sodium hydrogencarbonate is also known as sodium _______.
Sodium hydrogencarbonate is also known as sodium _______.
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The chemical formula for sodium hydrogencarbonate is _______.
The chemical formula for sodium hydrogencarbonate is _______.
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When metal carbonates react with acids, _______ gas is produced.
When metal carbonates react with acids, _______ gas is produced.
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Lime water is a solution of calcium _______.
Lime water is a solution of calcium _______.
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Acids react with metals to form a compound called a ______.
Acids react with metals to form a compound called a ______.
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When a metal reacts with an acid, it displaces ______ atoms.
When a metal reacts with an acid, it displaces ______ atoms.
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Sodium hydroxide reacts with zinc to form sodium ______.
Sodium hydroxide reacts with zinc to form sodium ______.
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The reaction between sodium hydroxide and zinc also produces ______ gas.
The reaction between sodium hydroxide and zinc also produces ______ gas.
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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 ______.
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Metal carbonates and metal hydrogencarbonates react with acids to produce a ______.
Metal carbonates and metal hydrogencarbonates react with acids to produce a ______.
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Sodium carbonate is represented by the formula ______.
Sodium carbonate is represented by the formula ______.
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Sodium hydrogencarbonate is represented by the formula ______.
Sodium hydrogencarbonate is represented by the formula ______.
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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.
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Limestone, chalk, and marble are different forms of calcium ______.
Limestone, chalk, and marble are different forms of calcium ______.
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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 ______.
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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.
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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.
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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.
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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.
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The effect of a base is nullified by an ______, and vice versa.
The effect of a base is nullified by an ______, and vice versa.
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NaOH is a chemical formula for ______ hydroxide.
NaOH is a chemical formula for ______ hydroxide.
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In a neutralization reaction, a ______ and water are formed.
In a neutralization reaction, a ______ and water are formed.
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Metal oxide plus ______ produces a salt and water.
Metal oxide plus ______ produces a salt and water.
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Limestone, chalk and marble are different forms of ______.
Limestone, chalk and marble are different forms of ______.
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The reaction between NaOH and HCl produces ______ as one of its products.
The reaction between NaOH and HCl produces ______ as one of its products.
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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 ______.
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When copper oxide reacts with hydrochloric acid, it forms ______ chloride.
When copper oxide reacts with hydrochloric acid, it forms ______ chloride.
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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.
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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 ______.
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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 ______.
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The color change of phenolphthalein indicates the presence of an ______.
The color change of phenolphthalein indicates the presence of an ______.
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Base + Acid → ______ + Water is a general representation of a neutralisation reaction.
Base + Acid → ______ + Water is a general representation of a neutralisation reaction.
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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 ______.
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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 ______.
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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.
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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.
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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 ______.
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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 ______.
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The chemical formula for calcium bicarbonate is Ca( ______ )2.
The chemical formula for calcium bicarbonate is Ca( ______ )2.
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The neutralisation reaction can be summarised as Base + Acid → ______ + Water
The neutralisation reaction can be summarised as Base + Acid → ______ + Water
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Adding phenolphthalein to sodium hydroxide results in a ______ colored solution.
Adding phenolphthalein to sodium hydroxide results in a ______ colored solution.
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The colour of the phenolphthalein changes after the addition of an ______.
The colour of the phenolphthalein changes after the addition of an ______.
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Metallic oxides react with acids to give salts and ______.
Metallic oxides react with acids to give salts and ______.
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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.
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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 ______.
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Non-metallic oxides are considered ______ in nature.
Non-metallic oxides are considered ______ in nature.
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When acids react with metals, ______ gas is usually liberated.
When acids react with metals, ______ gas is usually liberated.
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Metal compound A reacts with dilute hydrochloric acid to produce ______.
Metal compound A reacts with dilute hydrochloric acid to produce ______.
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Acids generate ______ gas on reacting with metals.
Acids generate ______ gas on reacting with metals.
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All acids have similar chemical ______.
All acids have similar chemical ______.
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All acids contain the element ______.
All acids contain the element ______.
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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 ______.
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Metallic oxides are said to be ______ oxides.
Metallic oxides are said to be ______ oxides.
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Non-metallic oxides are ______ in nature.
Non-metallic oxides are ______ in nature.
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Calcium hydroxide reacts with carbon dioxide to produce a salt and ______.
Calcium hydroxide reacts with carbon dioxide to produce a salt and ______.
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When an acid reacts with a metal, ______ gas is usually liberated.
When an acid reacts with a metal, ______ gas is usually liberated.
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The gas evolved extinguishes a burning ______.
The gas evolved extinguishes a burning ______.
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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 ______.
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Metallic oxides react with acids to give ______ and water.
Metallic oxides react with acids to give ______ and water.
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Metallic oxides are considered to be ______ oxides.
Metallic oxides are considered to be ______ oxides.
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Non-metallic oxides are considered to be ______ in nature.
Non-metallic oxides are considered to be ______ in nature.
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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.
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A gas is usually liberated when an acid reacts with a ______.
A gas is usually liberated when an acid reacts with a ______.
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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 ______.
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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 ______.
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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 ______.
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Acids produce hydrogen ions, H+ in ______.
Acids produce hydrogen ions, H+ in ______.
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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.
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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.
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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.
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In the presence of water, HCl dissociates into H3O+ and ______.
In the presence of water, HCl dissociates into H3O+ and ______.
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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.
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Ions are responsible for the conductivity of acidic ______.
Ions are responsible for the conductivity of acidic ______.
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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.
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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.
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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.
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Electric current is carried through an acidic solution by ______.
Electric current is carried through an acidic solution by ______.
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Acids contain the ______ ion as the cation.
Acids contain the ______ ion as the cation.
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Acids produce hydrogen ______, H+(aq), in solution that cause their acidic properties.
Acids produce hydrogen ______, H+(aq), in solution that cause their acidic properties.
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Hydrogen ions cannot exist alone and must combine with ______ molecules.
Hydrogen ions cannot exist alone and must combine with ______ molecules.
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Hydrogen ions are shown as H+(aq) or ______ ion.
Hydrogen ions are shown as H+(aq) or ______ ion.
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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 ______.
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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 ______.
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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.
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When NaOH is dissolved in water, it forms Na+ and ______ ions.
When NaOH is dissolved in water, it forms Na+ and ______ ions.
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The bulb will start glowing in the case of ______.
The bulb will start glowing in the case of ______.
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Glucose and alcohol solutions do not conduct ______.
Glucose and alcohol solutions do not conduct ______.
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The electric current is carried through the acidic solution by ______.
The electric current is carried through the acidic solution by ______.
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Acids contain H+ ion as a ______.
Acids contain H+ ion as a ______.
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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.
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Hydrogen ions in HCl are produced in the presence of ______.
Hydrogen ions in HCl are produced in the presence of ______.
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Hydrogen ions cannot exist alone, but they exist after combining with ______ molecules.
Hydrogen ions cannot exist alone, but they exist after combining with ______ molecules.
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Hydrogen ions must always be shown as H+(aq) or ______ ion (H3O+).
Hydrogen ions must always be shown as H+(aq) or ______ ion (H3O+).
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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.
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Bases generate ______ ions in water.
Bases generate ______ ions in water.
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Bases that are soluble in water are called ______.
Bases that are soluble in water are called ______.
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Alkalis are soapy to touch, bitter and ______.
Alkalis are soapy to touch, bitter and ______.
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The reaction of an acid and a base forms a ______ and water.
The reaction of an acid and a base forms a ______ and water.
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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.
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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 ______.
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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.
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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.
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All bases do not dissolve in ______.
All bases do not dissolve in ______.
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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 ______.
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An alkali is a base that dissolves in ______.
An alkali is a base that dissolves in ______.
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When an acid reacts with a base, the products are salt and ______.
When an acid reacts with a base, the products are salt and ______.
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The process of dissolving an acid in water is highly ______.
The process of dissolving an acid in water is highly ______.
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Acid must always be added slowly to ______ with constant stirring.
Acid must always be added slowly to ______ with constant stirring.
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When sodium hydroxide is mixed with water, it generates ______ ions.
When sodium hydroxide is mixed with water, it generates ______ ions.
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Never taste or touch ______ as they may cause harm.
Never taste or touch ______ as they may cause harm.
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The glass container may break due to excessive local ______.
The glass container may break due to excessive local ______.
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All bases do not ______ in water.
All bases do not ______ in water.
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The neutralization reaction can be viewed as ______ + Base → Salt + Water.
The neutralization reaction can be viewed as ______ + Base → Salt + Water.
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Bases generate hydroxide (______ ) ions in water.
Bases generate hydroxide (______ ) ions in water.
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An alkali is a base that ______ in water.
An alkali is a base that ______ in water.
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Bases are soapy to touch, ______ and corrosive.
Bases are soapy to touch, ______ and corrosive.
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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 ______.
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The neutralization reaction can be represented as H+(aq) + OH–(aq) → ______.
The neutralization reaction can be represented as H+(aq) + OH–(aq) → ______.
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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.
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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.
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The pH scale measures the concentration of ______ ions in a solution.
The pH scale measures the concentration of ______ ions in a solution.
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A neutral solution has a pH value of ______.
A neutral solution has a pH value of ______.
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On the pH scale, values less than 7 indicate an ______ solution.
On the pH scale, values less than 7 indicate an ______ solution.
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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.
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When diluting an acid, the acid should be added to the ______.
When diluting an acid, the acid should be added to the ______.
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Higher the hydronium ion concentration, lower is the ______ value.
Higher the hydronium ion concentration, lower is the ______ value.
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The 'p' in pH stands for 'potenz' in ______.
The 'p' in pH stands for 'potenz' in ______.
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A universal indicator is a mixture of several ______.
A universal indicator is a mixture of several ______.
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Aqueous solutions of acids conduct ______.
Aqueous solutions of acids conduct ______.
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A scale for measuring hydrogen ion concentration is called the ______ scale.
A scale for measuring hydrogen ion concentration is called the ______ scale.
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The 'p' in pH stands for 'potenz' in German, meaning ______.
The 'p' in pH stands for 'potenz' in German, meaning ______.
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A pH of 7 indicates a ______ solution.
A pH of 7 indicates a ______ solution.
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Values less than 7 on the pH scale represent an ______ solution.
Values less than 7 on the pH scale represent an ______ solution.
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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.
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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.
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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.
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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 ______.
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The pH scale generally ranges from 0 (very acidic) to 14 (very ______).
The pH scale generally ranges from 0 (very acidic) to 14 (very ______).
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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.
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The p in pH stands for ‘______’ in German, meaning power.
The p in pH stands for ‘______’ in German, meaning power.
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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 ______).
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Higher the hydronium ion concentration, ______ is the pH value.
Higher the hydronium ion concentration, ______ is the pH value.
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The pH of a ______ solution is 7.
The pH of a ______ solution is 7.
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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 ______.
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Generally paper impregnated with the universal indicator is used for measuring ______.
Generally paper impregnated with the universal indicator is used for measuring ______.
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Saliva has a pH value that is typically around ______ before a meal.
Saliva has a pH value that is typically around ______ before a meal.
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Lemon juice is known to have a ______ pH, making it acidic.
Lemon juice is known to have a ______ pH, making it acidic.
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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.
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Tap water generally has a pH of around ______, which is neutral.
Tap water generally has a pH of around ______, which is neutral.
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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 ______.
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Coffee is likely to have a ______ pH due to its acidic nature.
Coffee is likely to have a ______ pH due to its acidic nature.
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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.
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Tomato juice is another example of a ______ substance with a low pH.
Tomato juice is another example of a ______ substance with a low pH.
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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.
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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 ______.
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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.
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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.
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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 ______.
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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.
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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.
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The survival of ______ life in rivers with acidic water becomes challenging.
The survival of ______ life in rivers with acidic water becomes challenging.
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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.
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Acids that give less H+ ions are said to be ______ acids.
Acids that give less H+ ions are said to be ______ acids.
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Our body works within the pH range of 7.0 to ______.
Our body works within the pH range of 7.0 to ______.
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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.
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Living organisms can survive only in a ______ range of pH change.
Living organisms can survive only in a ______ range of pH change.
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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.
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A 1M solution of ______ is an example of a strong base.
A 1M solution of ______ is an example of a strong base.
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The atmosphere of Venus contains thick clouds of sulphuric ______.
The atmosphere of Venus contains thick clouds of sulphuric ______.
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Plants need a specific pH range in the ______ for healthy growth.
Plants need a specific pH range in the ______ for healthy growth.
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Our stomach produces hydrochloric ______ to help with digestion.
Our stomach produces hydrochloric ______ to help with digestion.
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During indigestion, the stomach produces too much ______, causing pain.
During indigestion, the stomach produces too much ______, causing pain.
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Antacids are used to neutralize excess ______ in the stomach.
Antacids are used to neutralize excess ______ in the stomach.
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Magnesium hydroxide, also known as Milk of magnesia, is a mild ______.
Magnesium hydroxide, also known as Milk of magnesia, is a mild ______.
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Tooth decay occurs when the pH in the mouth is lower than ______.
Tooth decay occurs when the pH in the mouth is lower than ______.
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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 ______.
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Bee stings inject an ______ into the skin that causes irritation.
Bee stings inject an ______ into the skin that causes irritation.
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Nettle leaves contain methanoic ______ which causes a painful burning sensation.
Nettle leaves contain methanoic ______ which causes a painful burning sensation.
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The atmosphere of Venus contains thick clouds of ______ acid.
The atmosphere of Venus contains thick clouds of ______ acid.
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Plants require a specific ______ range in the soil for healthy growth.
Plants require a specific ______ range in the soil for healthy growth.
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The human stomach produces ______ acid to aid in digestion.
The human stomach produces ______ acid to aid in digestion.
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Indigestion can occur when the stomach produces too much ______.
Indigestion can occur when the stomach produces too much ______.
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To relieve indigestion, people often use ______ which neutralize excess acid.
To relieve indigestion, people often use ______ which neutralize excess acid.
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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.
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Tooth decay starts when the pH of the mouth is lower than ______.
Tooth decay starts when the pH of the mouth is lower than ______.
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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.
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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 ______.
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Bee stings contain an ______ that causes pain and irritation.
Bee stings contain an ______ that causes pain and irritation.
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Our stomach produces ______ acid to help with digestion.
Our stomach produces ______ acid to help with digestion.
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Antacids neutralize excess ______ in the stomach.
Antacids neutralize excess ______ in the stomach.
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Tooth enamel is made up of calcium ______.
Tooth enamel is made up of calcium ______.
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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.
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Bee stings leave behind an ______ which causes pain.
Bee stings leave behind an ______ which causes pain.
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Nettle leaves inject ______ acid causing burning pain.
Nettle leaves inject ______ acid causing burning pain.
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Nettle leaves have stinging hairs that secrete ______ acid.
Nettle leaves have stinging hairs that secrete ______ acid.
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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.
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In vinegar, the acid present is ______ acid.
In vinegar, the acid present is ______ acid.
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Sour milk contains ______ acid.
Sour milk contains ______ acid.
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Both oranges and lemons contain ______ acid.
Both oranges and lemons contain ______ acid.
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Tamarind is known for having ______ acid.
Tamarind is known for having ______ acid.
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The acid found in ant stings is ______ acid.
The acid found in ant stings is ______ acid.
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Tomatoes contain the ______ acid.
Tomatoes contain the ______ acid.
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A solution with a pH of 6 is considered ______.
A solution with a pH of 6 is considered ______.
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Rubbing a nettle sting with a dock plant leaf is a traditional ______.
Rubbing a nettle sting with a dock plant leaf is a traditional ______.
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Vinegar contains ______ acid.
Vinegar contains ______ acid.
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Lemons contain ______ acid.
Lemons contain ______ acid.
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Ant stings contain ______ acid.
Ant stings contain ______ acid.
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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.
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Farmers might treat soil with quick lime to reduce soil ______.
Farmers might treat soil with quick lime to reduce soil ______.
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Tamarind contains ______ acid.
Tamarind contains ______ acid.
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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.
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Sour milk (curd) contains ______ acid.
Sour milk (curd) contains ______ acid.
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Lemons are a good source of ______ acid.
Lemons are a good source of ______ acid.
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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.
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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 ______.
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NaCl and Na2SO4 belong to the family of ______ salts.
NaCl and Na2SO4 belong to the family of ______ salts.
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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.
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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.
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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.
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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.
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The salt we use in our food is ______.
The salt we use in our food is ______.
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Seawater contains many ______ dissolved in it, including sodium chloride.
Seawater contains many ______ dissolved in it, including sodium chloride.
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Deposits of solid salt are also known as ______ salt.
Deposits of solid salt are also known as ______ salt.
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Beds of rock salt were formed when seas of bygone ages ______ up.
Beds of rock salt were formed when seas of bygone ages ______ up.
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NaCl and KCl belong to the family of ______ salts.
NaCl and KCl belong to the family of ______ salts.
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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.
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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.
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Sodium chloride is a ______ salt.
Sodium chloride is a ______ salt.
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Deposits of solid salt are often brown due to ______.
Deposits of solid salt are often brown due to ______.
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Large salt crystals found in the ground are called ______ salt.
Large salt crystals found in the ground are called ______ salt.
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Salts with either the same positive or negative radicals belong to a ______.
Salts with either the same positive or negative radicals belong to a ______.
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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.
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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.
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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.
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Sodium chloride is formed by the combination of hydrochloric acid and ______ solution.
Sodium chloride is formed by the combination of hydrochloric acid and ______ solution.
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Seawater contains many salts dissolved in it, from which ______ is separated.
Seawater contains many salts dissolved in it, from which ______ is separated.
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The large crystals of salt formed in bygone ages are known as ______.
The large crystals of salt formed in bygone ages are known as ______.
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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 ______.
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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.
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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.
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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 ______.
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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 ______.
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In the chlor-alkali process, chlorine gas is given off at the ______.
In the chlor-alkali process, chlorine gas is given off at the ______.
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Hydrogen gas is produced at the ______ in the chlor-alkali process.
Hydrogen gas is produced at the ______ in the chlor-alkali process.
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The electrolysis of aqueous sodium chloride is also known as using ______.
The electrolysis of aqueous sodium chloride is also known as using ______.
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Chlorine gas is used in the manufacture of ______ powder.
Chlorine gas is used in the manufacture of ______ powder.
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Bleaching powder is produced by the action of chlorine on dry slaked ______.
Bleaching powder is produced by the action of chlorine on dry slaked ______.
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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.
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Common salt is a raw material for making various materials including ______ hydroxide.
Common salt is a raw material for making various materials including ______ hydroxide.
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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 ______.
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In the chlor-alkali process, ______ gas is given off at the anode.
In the chlor-alkali process, ______ gas is given off at the anode.
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The chlor-alkali process produces ______ gas at the cathode.
The chlor-alkali process produces ______ gas at the cathode.
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The chemical formula for bleaching powder is represented as ______.
The chemical formula for bleaching powder is represented as ______.
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During the electrolysis of aqueous sodium chloride, ______ is produced.
During the electrolysis of aqueous sodium chloride, ______ is produced.
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The process of electrolysis of brine is known as the ______-alkali process.
The process of electrolysis of brine is known as the ______-alkali process.
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Sodium hydroxide solution is formed near the ______ during electrolysis of brine.
Sodium hydroxide solution is formed near the ______ during electrolysis of brine.
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Common salt is an important raw material for producing ______, sodium hydroxide.
Common salt is an important raw material for producing ______, sodium hydroxide.
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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 ______.
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During the chlor-alkali process, chlorine gas is produced at the ______.
During the chlor-alkali process, chlorine gas is produced at the ______.
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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 ______.
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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.
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The products obtained from the chlor-alkali process are all ______.
The products obtained from the chlor-alkali process are all ______.
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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.
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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.
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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 ______.
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Sodium hydrogencarbonate is commonly known as ______.
Sodium hydrogencarbonate is commonly known as ______.
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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.
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Baking powder is a mixture of baking soda and a mild edible ______.
Baking powder is a mixture of baking soda and a mild edible ______.
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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.
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Washing soda is represented chemically as ______.
Washing soda is represented chemically as ______.
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Sodium hydrogencarbonate helps neutralize excess ______ in the stomach.
Sodium hydrogencarbonate helps neutralize excess ______ in the stomach.
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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.
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The production of sodium carbonate can be achieved by ______ baking soda.
The production of sodium carbonate can be achieved by ______ baking soda.
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______ powder is used to bleach cotton and linen in the textile industry.
______ powder is used to bleach cotton and linen in the textile industry.
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Bleaching powder is used for bleaching wood pulp in paper ______.
Bleaching powder is used for bleaching wood pulp in paper ______.
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Bleaching powder is used to make drinking water free from ______.
Bleaching powder is used to make drinking water free from ______.
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The chemical name for baking soda is sodium ______.
The chemical name for baking soda is sodium ______.
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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.
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Baking soda contains sodium ______ and is a mild non-corrosive basic salt.
Baking soda contains sodium ______ and is a mild non-corrosive basic salt.
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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.
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Washing soda is obtained by the recrystallisation of sodium ______.
Washing soda is obtained by the recrystallisation of sodium ______.
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Washing soda is a ______ salt and is commonly used in cleaning.
Washing soda is a ______ salt and is commonly used in cleaning.
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Baking soda is used in soda-______ fire extinguishers.
Baking soda is used in soda-______ fire extinguishers.
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______ is used for bleaching cotton and linen in the textile industry.
______ is used for bleaching cotton and linen in the textile industry.
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Bleaching powder is used as an ______ agent in many chemical industries.
Bleaching powder is used as an ______ agent in many chemical industries.
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______ is used to make drinking water free from germs.
______ is used to make drinking water free from germs.
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Baking soda is produced using ______ as one of the raw materials.
Baking soda is produced using ______ as one of the raw materials.
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Baking soda is a mild non-corrosive ______ salt.
Baking soda is a mild non-corrosive ______ salt.
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Baking soda is a key ingredient in making ______ powder.
Baking soda is a key ingredient in making ______ powder.
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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.
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Sodium hydrogencarbonate is also an ingredient in ______ which neutralizes stomach acids
Sodium hydrogencarbonate is also an ingredient in ______ which neutralizes stomach acids
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______ 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.
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The chemical formula for hydrated copper sulphate is Cu SO4 . ______
The chemical formula for hydrated copper sulphate is Cu SO4 . ______
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Sodium carbonate is also known as ______ soda.
Sodium carbonate is also known as ______ soda.
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Sodium carbonate can be used as a ______ agent for domestic purposes.
Sodium carbonate can be used as a ______ agent for domestic purposes.
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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.
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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 ______.
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Sodium carbonate is used in the manufacture of sodium compounds such as ______.
Sodium carbonate is used in the manufacture of sodium compounds such as ______.
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Gypsum has two water molecules as water of ______.
Gypsum has two water molecules as water of ______.
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______ is used in glass, soap and paper industries.
______ is used in glass, soap and paper industries.
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The chemical formula of gypsum is CaSO4.______
The chemical formula of gypsum is CaSO4.______
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Sodium carbonate is also used for removing permanent ______ of water
Sodium carbonate is also used for removing permanent ______ of water
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10H2O signifies the presence of ten molecules of ______.
10H2O signifies the presence of ten molecules of ______.
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Sodium carbonate and sodium hydrogencarbonate are useful chemicals for many ______ processes.
Sodium carbonate and sodium hydrogencarbonate are useful chemicals for many ______ processes.
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Washing soda is used in the glass, soap, and ______ industries.
Washing soda is used in the glass, soap, and ______ industries.
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Washing soda can be used as a ______ agent for domestic purposes.
Washing soda can be used as a ______ agent for domestic purposes.
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Washing soda is used for removing permanent ______ of water.
Washing soda is used for removing permanent ______ of water.
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Copper sulphate crystals have water of ______.
Copper sulphate crystals have water of ______.
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When copper sulphate crystals are heated, the salt turns ______.
When copper sulphate crystals are heated, the salt turns ______.
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Gypsum has ______ water molecules as water of crystallisation.
Gypsum has ______ water molecules as water of crystallisation.
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The chemical formula for hydrated copper sulphate is CuSO4. ______H2O.
The chemical formula for hydrated copper sulphate is CuSO4. ______H2O.
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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.
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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.
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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.
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Sodium carbonate is used for removing ______ hardness of water.
Sodium carbonate is used for removing ______ hardness of water.
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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.
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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.
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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 ______.
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After heating copper sulphate crystals, adding ______ restores their blue color.
After heating copper sulphate crystals, adding ______ restores their blue color.
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Plaster of Paris is used by doctors to support ______ bones.
Plaster of Paris is used by doctors to support ______ bones.
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When Plaster of Paris is mixed with water it becomes ______.
When Plaster of Paris is mixed with water it becomes ______.
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Plaster of Paris can be used to make ______ and materials for decoration.
Plaster of Paris can be used to make ______ and materials for decoration.
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The chemical name for Plaster of Paris is calcium sulphate ______.
The chemical name for Plaster of Paris is calcium sulphate ______.
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The common name for the compound CaOCl2 is ______ powder.
The common name for the compound CaOCl2 is ______ powder.
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A treatment with chlorine yields ______ powder.
A treatment with chlorine yields ______ powder.
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A solution of sodium ______ is heated creates a chemical reaction.
A solution of sodium ______ is heated creates a chemical reaction.
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When an acid reacts with a metal, ______ gas is released.
When an acid reacts with a metal, ______ gas is released.
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When mixed with water, Plaster of Paris changes to ______.
When mixed with water, Plaster of Paris changes to ______.
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Plaster of Paris is a white ______.
Plaster of Paris is a white ______.
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The chemical formula for Plaster of Paris is CaSO4.______H2O.
The chemical formula for Plaster of Paris is CaSO4.______H2O.
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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.
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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.
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When Plaster of Paris reacts with water, it forms a hard solid ______.
When Plaster of Paris reacts with water, it forms a hard solid ______.
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Plaster of Paris is a calcium sulfate ______.
Plaster of Paris is a calcium sulfate ______.
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Plaster of Paris is chemically known as calcium sulphate ______.
Plaster of Paris is chemically known as calcium sulphate ______.
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Plaster of Paris is used for making ______ and decorative materials.
Plaster of Paris is used for making ______ and decorative materials.
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Plaster of Paris is used for making surfaces ______
Plaster of Paris is used for making surfaces ______
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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.
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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.
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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.
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A neutral solution has a pH of exactly ______.
A neutral solution has a pH of exactly ______.
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When acids and bases neutralize each other, they form salts and ______.
When acids and bases neutralize each other, they form salts and ______.
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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.
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Mixing concentrated acids or bases with water is a highly ______ process.
Mixing concentrated acids or bases with water is a highly ______ process.
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Living beings perform metabolic activities within an optimal pH ______.
Living beings perform metabolic activities within an optimal pH ______.
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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 ______.
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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 ______.
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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.
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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 ______.
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Salts have various ______ in everyday life and in industries.
Salts have various ______ in everyday life and in industries.
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The pH scale ranges from 0 to ______.
The pH scale ranges from 0 to ______.
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An acidic solution has a pH less than ______.
An acidic solution has a pH less than ______.
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A basic solution has a pH more than ______.
A basic solution has a pH more than ______.
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Living beings carry out their metabolic activities within an ______ pH range.
Living beings carry out their metabolic activities within an ______ pH range.
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Acids and bases ______ each other to form salts and water.
Acids and bases ______ each other to form salts and water.
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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 ______.
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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 ______.
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______ is used to treat indigestion.
______ is used to treat indigestion.
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Acids and bases neutralize each other to form corresponding ______ and water.
Acids and bases neutralize each other to form corresponding ______ and water.
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Living beings carry out their metabolic activities within an optimal pH ______.
Living beings carry out their metabolic activities within an optimal pH ______.
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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.
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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 ______.
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The reaction between dilute sulphuric acid and zinc granules produces ______.
The reaction between dilute sulphuric acid and zinc granules produces ______.
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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.
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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 ______.
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Salts have various uses in everyday life and in ______.
Salts have various uses in everyday life and in ______.
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Acids do not show acidic behavior in the absence of ______.
Acids do not show acidic behavior in the absence of ______.
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A solution with a pH of 1 is considered ______ acidic.
A solution with a pH of 1 is considered ______ acidic.
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A solution with a pH of 11 is considered strongly ______.
A solution with a pH of 11 is considered strongly ______.
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A solution with a pH of 9 is considered ______ alkaline.
A solution with a pH of 9 is considered ______ alkaline.
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Fizzing will occur more vigorously in the test tube with ______ acid.
Fizzing will occur more vigorously in the test tube with ______ acid.
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As fresh milk turns into curd, its pH will ______.
As fresh milk turns into curd, its pH will ______.
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Adding baking soda to fresh milk shifts its pH to slightly ______.
Adding baking soda to fresh milk shifts its pH to slightly ______.
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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 ______
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Fizzing will occur more vigorously in the test tube containing ______ acid.
Fizzing will occur more vigorously in the test tube containing ______ acid.
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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 ______.
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A neutralisation reaction forms salt and ______.
A neutralisation reaction forms salt and ______.
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Solution ______ has a pH of 7, indicating it is neutral.
Solution ______ has a pH of 7, indicating it is neutral.
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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 ______.
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As fresh milk turns into curd, its pH is expected to ______.
As fresh milk turns into curd, its pH is expected to ______.
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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 ______.
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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 ______.
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A neutralization reaction is a chemical reaction between an acid and a ______.
A neutralization reaction is a chemical reaction between an acid and a ______.
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To prepare your own indicator, you can crush ______ in a mortar.
To prepare your own indicator, you can crush ______ in a mortar.
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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 ______.
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The reaction of acids with metal hydrogencarbonates is used in the fire ______.
The reaction of acids with metal hydrogencarbonates is used in the fire ______.
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A soda-acid fire extinguisher uses sodium ______ solution.
A soda-acid fire extinguisher uses sodium ______ solution.
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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.
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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 ______.
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The fire extinguisher works by producing a ______ coming out of the nozzle.
The fire extinguisher works by producing a ______ coming out of the nozzle.
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The generated carbon dioxide is used to put out a ______ candle.
The generated carbon dioxide is used to put out a ______ candle.
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The reaction of acids with metal hydrogencarbonates produces ______.
The reaction of acids with metal hydrogencarbonates produces ______.
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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.
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Sodium hydrogencarbonate solution is placed in the ______ of the fire extinguisher.
Sodium hydrogencarbonate solution is placed in the ______ of the fire extinguisher.
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Tilting the wash-bottle allows the acid to mix with the ______ solution.
Tilting the wash-bottle allows the acid to mix with the ______ solution.
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The discharge from the nozzle of the fire extinguisher is ______.
The discharge from the nozzle of the fire extinguisher is ______.
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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.
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In the experiment, 20 mL of sodium ______ solution is used.
In the experiment, 20 mL of sodium ______ solution is used.
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A dilute solution of ______ acid is used in the ignition tube.
A dilute solution of ______ acid is used in the ignition tube.
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The sodium hydrogencarbonate solution is in a ______.
The sodium hydrogencarbonate solution is in a ______.
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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.
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The experiment demonstrates how a soda-acid fire extinguisher produces ______.
The experiment demonstrates how a soda-acid fire extinguisher produces ______.
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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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Description
Test your knowledge on acids, bases, and salts with this quiz that covers the properties, indicators, and remedies associated with them. Explore concepts like litmus tests, natural indicators, and the taste profiles of acids and bases. Perfect for students studying chemistry!
