Acid-Base Reactions and Non-Metallic Oxides
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Questions and Answers

Metallic oxides react with acids to give salts and ______.

water

Non-metallic oxides are said to be ______ in nature because they react with bases to form a salt and water.

acidic

Calcium hydroxide reacts with carbon dioxide to produce a salt and ______.

water

Acids generate ______ gas on reacting with metals.

<p>hydrogen</p> Signup and view all the answers

Curd and sour substances should not be kept in brass and ______ vessels.

<p>copper</p> Signup and view all the answers

When an acid reacts with a metal, ______ gas is usually liberated.

<p>hydrogen</p> Signup and view all the answers

The gas evolved extinguishes a burning ______.

<p>candle</p> Signup and view all the answers

All acids have similar chemical ______.

<p>properties</p> Signup and view all the answers

Metal compound A reacts with dilute hydrochloric acid to produce ______.

<p>effervescence</p> Signup and view all the answers

Metallic oxides react with acids to produce ______ and water, demonstrating their basic nature.

<p>salts</p> Signup and view all the answers

Non-metallic oxides are considered ______ in nature because they react with bases to form salt and water.

<p>acidic</p> Signup and view all the answers

The effervescence produced when metal compound A reacts with dilute hydrochloric acid indicates the release of a ______.

<p>gas</p> Signup and view all the answers

Acids generate ______ gas when they react with metals, evidenced in Activity 2.3.

<p>hydrogen</p> Signup and view all the answers

The reaction of a non-metallic oxide with a base produces a ______ and water.

<p>salt</p> Signup and view all the answers

Activity 2.5 demonstrates the reaction between carbon dioxide and calcium hydroxide, also known as ______ water .

<p>lime</p> Signup and view all the answers

When an acid reacts with a metal, the gas that is usually liberated is ______.

<p>hydrogen</p> Signup and view all the answers

Curd and sour substances should not be kept in brass and copper vessels because they react and create ______, poisoning the food

<p>toxins</p> Signup and view all the answers

In order to test if all compounds containing hydrogen are acidic requires solutions such as glucose, alcohols, hydrochloric acid, and ______ acids.

<p>sulfuric</p> Signup and view all the answers

Metallic oxides are said to be ______ oxides due to their reaction with acids.

<p>basic</p> Signup and view all the answers

Metallic oxides react with acids to produce salts and water, which is similar to the reaction of a base with an acid, thus metallic oxides are considered ______ oxides.

<p>basic</p> Signup and view all the answers

The reaction between a non-metallic oxide and a base results in the production of ______ and water, which is similar to the reaction between an acid and a base.

<p>salt</p> Signup and view all the answers

Curd and sour substances should not be kept in brass and copper vessels because they react and ______ the metal.

<p>corrode</p> Signup and view all the answers

When an acid reacts with a metal, the gas usually liberated is ______, which can be detected using a burning splint test.

<p>hydrogen</p> Signup and view all the answers

Metal compound A reacts with dilute hydrochloric acid to produce effervescence; the gas evolved extinguishes a burning candle, which indicates the production of ______ gas.

<p>carbon dioxide</p> Signup and view all the answers

All acids share similar chemical properties because they generate ______ ions ($H^+$) when dissolved in water.

<p>hydrogen</p> Signup and view all the answers

The effervescence observed when a metal compound reacts with hydrochloric acid indicates the release of a ______.

<p>gas</p> Signup and view all the answers

In the reaction of metal oxides with acids, the products are ______ and water, similar to the products of an acid-base neutralization reaction.

<p>salt</p> Signup and view all the answers

The reaction between calcium hydroxide and carbon dioxide results in the formation of calcium carbonate and water, demonstrating that non-metallic oxides are ______ in nature.

<p>acidic</p> Signup and view all the answers

When testing whether all compounds containing hydrogen are acidic, it is important to include substances like glucose and alcohol as ______ to observe if they exhibit acidic properties.

<p>controls</p> Signup and view all the answers

In the reaction between a metallic oxide and an acid, the products are ______ and water, analogous to the reaction of a base with an acid.

<p>salt</p> Signup and view all the answers

Non-metallic oxides are considered ______ in nature because they react with bases to produce salt and water, akin to the reaction of an acid with a base.

<p>acidic</p> Signup and view all the answers

The effervescence produced when metal compound A reacts with dilute hydrochloric acid is due to the liberation of ______ gas, which can extinguish a burning candle.

<p>carbon dioxide</p> Signup and view all the answers

The commonality among all acids, demonstrated by their reaction with metals, is the generation of ______ gas.

<p>hydrogen</p> Signup and view all the answers

The fact that metallic oxides react with acids to give salts and water is why they are described as ______ oxides.

<p>basic</p> Signup and view all the answers

In Activity 2.5, the reaction observed between carbon dioxide and calcium hydroxide (lime water) illustrates how calcium hydroxide, a base, reacts with carbon dioxide to yield a ______ and water.

<p>salt</p> Signup and view all the answers

The evolution of a gas that extinguishes a burning candle when a metal compound reacts with dilute hydrochloric acid indicates the release of ______, suggesting the metal compound contains a carbonate.

<p>carbon dioxide</p> Signup and view all the answers

The experimental setup in Activity 2.8, involving the fixation of nails on a cork placed in a beaker with solutions like glucose, hydrochloric acid, suggests an investigation into electrical ______ of different substances.

<p>conductivity</p> Signup and view all the answers

The observation that solutions of glucose and alcohol do not conduct electricity as readily as hydrochloric acid and sulfuric acid suggests differences in their degree of ______ in aqueous solution.

<p>ionization</p> Signup and view all the answers

The assertion that all acids have similar chemical properties primarily stems from their propensity to donate ______ in chemical reactions.

<p>protons</p> Signup and view all the answers

Metallic oxides react with acids to produce ______ and water.

<p>salts</p> Signup and view all the answers

The reaction between carbon dioxide and calcium hydroxide (lime water) produces ______ and water.

<p>salt</p> Signup and view all the answers

The presence of hydrogen gas can be tested using a burning ______, which will extinguish with a pop sound.

<p>candle</p> Signup and view all the answers

If metal compound A reacts with dilute hydrochloric acid to produce effervescence, the gas evolved is likely ______.

<p>carbon dioxide</p> Signup and view all the answers

All acids share similar chemical properties due to the presence of ______ ions.

<p>hydrogen</p> Signup and view all the answers

The Activity 2.8 uses solutions of glucose, alcohol, hydrochloric acid and ______ acid.

<p>sulfuric</p> Signup and view all the answers

Curd and sour substances should not be kept in brass and copper vessels because these substances contain ______ that can react with the metal producing toxic compounds.

<p>acids</p> Signup and view all the answers

The chemical process by which a burning candle is extinguished by evolved gas from metal compound A reacting with dilute hydrochloric acid involves the ______ of the flame, thus halting the combustion process.

<p>displacement</p> Signup and view all the answers

Metallic oxides react with acids to produce ______ and water, classifying them as basic oxides.

<p>salts</p> Signup and view all the answers

Non-metallic oxides react with bases to form ______ and water, indicating their acidic nature.

<p>salts</p> Signup and view all the answers

The gas evolved during the reaction of a metal compound with dilute hydrochloric acid extinguishes a burning ______.

<p>candle</p> Signup and view all the answers

All acids, regardless of their source, share similar chemical properties due to the presence of ______.

<p>hydrogen</p> Signup and view all the answers

Curd and sour substances should not be kept in brass and copper vessels because they react and cause ______.

<p>corrosion</p> Signup and view all the answers

The reaction of carbon dioxide with calcium hydroxide, commonly known as ______, results in the formation of a salt and water.

<p>lime water</p> Signup and view all the answers

In Activity 2.8, the experiment uses glucose, alcohol, hydrochloric acid, and sulfuric acid to test if all compounds containing ______ are acidic.

<p>hydrogen</p> Signup and view all the answers

The effervescence observed when metal compound A reacts with dilute hydrochloric acid is due to the release of ______ gas.

<p>carbon dioxide</p> Signup and view all the answers

If metal compound A reacts with dilute hydrochloric acid to produce calcium chloride, water, and a gas that extinguishes a burning candle, then metal compound A is likely ______.

<p>calcium carbonate</p> Signup and view all the answers

Metallic oxides react with acids to produce ______ and water, thus they are considered basic oxides.

<p>salts</p> Signup and view all the answers

The reaction between carbon dioxide and lime water [calcium hydroxide] produces ______ and water.

<p>salt</p> Signup and view all the answers

To test for the presence of hydrogen gas, bring a burning candle near the gas; it will extinguish with a ______ sound.

<p>pop</p> Signup and view all the answers

If a metal compound reacts with dilute hydrochloric acid to produce effervescence and the gas evolved extinguishes a burning candle, the gas is likely ______.

<p>carbon dioxide</p> Signup and view all the answers

All acids have similar chemical properties because they all generate ______ ions when dissolved in water.

<p>hydrogen</p> Signup and view all the answers

While all acids contain hydrogen, not all compounds containing hydrogen are ______.

<p>acidic</p> Signup and view all the answers

The reason curd and sour substances should not be kept in brass and copper vessels is because acids in these foods can react with the metals, forming toxic ______.

<p>salts</p> Signup and view all the answers

A nuanced understanding of acid-base chemistry reveals that the amphoteric nature of certain metallic oxides allows them to react with both acids and bases, behaving as either a Brønsted-Lowry acid or base depending on the reaction conditions, a phenomenon critically dependent on the ______ and inherent electronic structure of the metallic cation.

<p>electronegativity</p> Signup and view all the answers

Flashcards

Basic Oxides

Metallic oxides that react with acids to produce salts and water.

Acidic Nature of Non-metallic Oxides

Non-metallic oxides react with bases, forming salts and water, indicating acidity.

Effervescence in Reactions

Gas release during acid-metal reactions, often seen as bubbling.

Gas from Acid-Metal Reaction

Hydrogen gas is usually evolved when acids react with metals.

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Balanced Chemical Equation

An equation that shows equal numbers of each atom on both sides of the reaction.

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Salts from Reactions

Compounds formed when acids react with bases or metallic oxides.

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Testing for Gases

Methods to confirm the presence of gases, like using a flame to test for hydrogen.

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Hydrogen in Acids

All acids generate hydrogen ions, leading to similar properties.

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Activity in Chemistry

Practical experiments to explore chemical properties and reactions.

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Acid-Base Reactions

Reactions between acids and bases producing salts and water.

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Metallic Oxides

Oxides of metals that react with acids to form salts and water.

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Calcium Hydroxide Reaction

Reacts with carbon dioxide, producing a salt and water.

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Acidic Non-metallic Oxides

Non-metallic oxides that react with bases, forming salts and water.

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Hydrogen Gas Test

A method to test for hydrogen gas using a burning candle.

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Effervescence Causes

The release of gas observed when an acid reacts with a metal.

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Acid-Base Similarity

Common properties due to presence of hydrogen ions in all acids.

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Compounds Formed

Salts and water produced from acid-base reactions.

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Importance of Curd Storage

Curd and sour substances shouldn't be stored in brass or copper due to reactions.

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Acid Reaction with Metals

Acids produce hydrogen gas when reacting with metals.

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Glucose and Alcohol Test

Testing compounds to see if they show acidic properties.

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Metallic Oxide Reaction

Metallic oxides react with acids to form salts and water.

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Carbon Dioxide and Base Reaction

Carbon dioxide reacts with bases like calcium hydroxide to produce salts and water.

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Hydrogen Gas Release

Gases, primarily hydrogen, are released during acid reactions with metals.

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Commonality in Acids

All acids share a common property of generating hydrogen ions when reacting.

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Acids with Different Compounds

Testing various compounds helps identify which are acidic.

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Importance of Storage Materials

Curd and sour substances shouldn't be stored in brass or copper due to reactions.

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Calcium Chloride Formation

Calcium chloride can be formed when acids react with calcium-based compounds.

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Testing for Hydrogen

A burning candle can test for the presence of hydrogen gas.

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Acidic Oxides

Non-metallic oxides that react with bases to form salts and water.

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Base Reaction with CO2

Calcium hydroxide reacts with carbon dioxide, producing a salt and water.

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Hydrogen Gas in Reactions

The gas released when acids react with metals, often tested with flames.

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Effect of Curd in Brass

Curd and sour substances react with brass and copper, damaging them.

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Metal Compound Reaction

Metal compounds react with acids to produce salts and release gases.

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Acids and Metals Activity

Experiment showing all acids produce hydrogen gas upon reacting with metals.

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Testing for Acidity

Evaluation of various compounds to identify acidic properties.

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Carbon Dioxide Production

Carbon dioxide forms when certain acids react with bases.

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Chemical Equation for Reaction

A balanced representation of reactants and products in a reaction.

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Reaction of Non-metallic Oxide with Base

Non-metallic oxides react with bases, forming a salt and water.

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Calcium Hydroxide

A strong base that reacts with carbon dioxide to form a salt and water.

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Properties of Acids

Acids have similar properties due to hydrogen ions generation during reactions.

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Hydrogen Gas Evolution

Hydrogen gas is produced when acids react with metals and can extinguish flames.

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Statement on Acids and Bases

All acids share common traits based on hydrogen ion production.

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Metal Compound Reaction with Acid

Metal compounds create effervescence when they react with acids, releasing gas.

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Testing for Hydrogen Gas

Using a burning candle can identify the presence of hydrogen gas.

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Acids in Different Compounds

Various compounds can be tested to see if they exhibit acidic properties.

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Storage Issues with Curd

Curd and sour foods should not be stored in brass or copper containers.

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Balanced Chemical Equation Importance

A balanced equation ensures equal numbers of each atom on both sides of the reaction.

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Metallic Oxides and Acids

Metallic oxides react with acids to produce salts and water.

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Non-metallic Oxides and Bases

Non-metallic oxides react with bases to form salts and water, indicating acidity.

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Effervescence Meaning

Effervescence refers to bubbling or gas release in a chemical reaction.

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Common Acid Reaction

All acids generate hydrogen gas when reacting with metals.

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Reactants of Acid and Metal

Metal compounds react with dilute hydrochloric acid to produce gas and salts.

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Hydrogen Gas Properties

Hydrogen gas is released during acid reactions with metals and can extinguish flames.

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Acids and Hydrogen Commonality

All acids have a commonality of producing hydrogen ions in reactions.

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Behavior of Curd in Metals

Curd and sour substances can react with brass and copper, potentially damaging them.

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Reaction of Carbon Dioxide with Calcium Hydroxide

Calcium hydroxide reacts with carbon dioxide to form a salt and water.

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Nature of Non-metallic Oxides

Non-metallic oxides are considered acidic as they react with bases to form salts and water.

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Curd Storage Materials

Curd and sour foods should not be stored in brass or copper due to reactions that produce harmful substances.

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Metal Acid Reaction

Metal compounds react with acids, often producing hydrogen gas and causing effervescence.

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Hydrogen Evolution in Reactions

Hydrogen gas is produced when acids react with metals, and it can be tested with a flame.

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Salt Formation from Reactions

Salts are formed when acids react with bases or metallic oxides, resulting in neutralization.

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Chemical Balance in Reactions

A balanced chemical equation has equal numbers of each atom on both sides of the reaction.

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Hydrogen's Role in Acids

All acids generate hydrogen ions, leading to their similar chemical behavior.

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Study Notes

Non-Metallic Oxide Reaction with Base

  • Non-metallic oxides react with bases, similar to how acids react with bases, producing salts and water.
  • Carbon dioxide reacts with calcium hydroxide (limewater) to produce calcium carbonate and water. This reaction is similar to the reaction between a base and an acid.
  • Metallic oxides are considered basic oxides, reacting with acids similarly to bases.

Acid and Base Properties

  • Acids and bases share similar chemical properties.
  • Acids produce hydrogen gas when reacting with metals.
  • This suggests hydrogen is common to all acids.
  • Further investigation is needed to determine if all compounds containing hydrogen are acidic.
  • All acids have similar chemical properties. Investigating whether all compounds containing hydrogen are acidic is necessary.

Acid Reaction with Metal

  • Acid reacts with metal to produce effervescence and a gas, which can extinguish a burning candle.
  • An example is the reaction of a metal compound with dilute hydrochloric acid to form calcium chloride. The gas evolved extinguishes a burning candle.
  • A balanced chemical equation can be written to represent this reaction.

Identifying Gases

  • Different gases have different properties.
  • Methods for identifying gases, like observing if a burning candle is extinguished, can be used.
  • The gas evolved from the reaction with dilute hydrochloric acid (likely hydrogen) can be identified using the candle test.

Acidic Properties of Substances

  • Curd and sour substances should not be kept in brass or copper vessels due to their reaction with the metal.

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Acids, Bases-6 PDF Past Paper

Description

Explore the fascinating world of acid-base reactions, focusing on non-metallic oxides and their interactions with bases. This quiz covers essential properties of acids, reactions with metals, and methods for identifying gases produced. Test your understanding of chemical equations and the behaviors of these substances.

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