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English Medium Class 10 - CBSE Question Bank Solutions for Science

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Balance the given equation:

AI2(SO4)3 +NaOH  AI(OH)3 + Na2SO4 

[1] Chemical Reactions and Equations
Chapter: [1] Chemical Reactions and Equations
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Balance the given equation:

HNO3 + Ca(OH)2  Ca(NO3)2 + H2O

[1] Chemical Reactions and Equations
Chapter: [1] Chemical Reactions and Equations
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Balance the gievn equation:

NaOH + H2SO4  Na2SO4 + H2O

[1] Chemical Reactions and Equations
Chapter: [1] Chemical Reactions and Equations
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Balance the given equation:

BaCI2 + H2SO4  BaSO4 + HCI

[1] Chemical Reactions and Equations
Chapter: [1] Chemical Reactions and Equations
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Fill in the following blank with suitable word:

 Chemical equations are balanced to satisfy the law of ............

[1] Chemical Reactions and Equations
Chapter: [1] Chemical Reactions and Equations
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Fill in the following blank with suitable word:

A solution made in water is known as an ........... solution and indicated by the symbol ...........

 

[1] Chemical Reactions and Equations
Chapter: [1] Chemical Reactions and Equations
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What is a chemical equation? Explain with the help of an example.

[1] Chemical Reactions and Equations
Chapter: [1] Chemical Reactions and Equations
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Giving examples, state the difference between balanced and unbalanced chemical equations.

[1] Chemical Reactions and Equations
Chapter: [1] Chemical Reactions and Equations
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Balance the given chemical equation:

NH3 → N2 + H2

[1] Chemical Reactions and Equations
Chapter: [1] Chemical Reactions and Equations
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Balance the given chemical equation:

C + CO2 → CO

[1] Chemical Reactions and Equations
Chapter: [1] Chemical Reactions and Equations
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When hydrogen is passed over copper oxide, copper and steam are formed. Write a balanced equation for this reaction and state which of the chemicals are elements.

[1] Chemical Reactions and Equations
Chapter: [1] Chemical Reactions and Equations
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When hydrogen is passed over copper oxide, copper and steam are formed. Write a balanced equation for this reaction and state which of the chemicals are compounds.

[1] Chemical Reactions and Equations
Chapter: [1] Chemical Reactions and Equations
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When hydrogen is passed over copper oxide, copper and steam are formed. Write a balanced equation for this reaction and state which of the chemicals are reactants.

[1] Chemical Reactions and Equations
Chapter: [1] Chemical Reactions and Equations
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When hydrogen is passed over copper oxide, copper and steam are formed. Write a balanced equation for this reaction and state which of the chemicals are products.

[1] Chemical Reactions and Equations
Chapter: [1] Chemical Reactions and Equations
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When hydrogen is passed over copper oxide, copper and steam are formed. Write a balanced equation for this reaction and state which of the chemicals are metals.

[1] Chemical Reactions and Equations
Chapter: [1] Chemical Reactions and Equations
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When hydrogen is passed over copper oxide, copper and steam are formed. Write a balanced equation for this reaction and state which of the chemicals are non-metals.

[1] Chemical Reactions and Equations
Chapter: [1] Chemical Reactions and Equations
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What are the various ways in which a chemical equation can be made more informative? Give examples to illustrate your answer.

[1] Chemical Reactions and Equations
Chapter: [1] Chemical Reactions and Equations
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Write balanced chemical equation from the following information:
An aqueous calcium hydroxide solution (lime water) reacts with carbon dioxide gas to produce a solid calcium carbonate precipitate and water.

[1] Chemical Reactions and Equations
Chapter: [1] Chemical Reactions and Equations
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Aluminium burns in chlorine to form aluminium chloride (AlCl3). Write a balanced chemical equation for this reaction.

[1] Chemical Reactions and Equations
Chapter: [1] Chemical Reactions and Equations
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Explain, with example, how the physical states of the reactants and products can be shown in a chemical equation.

[1] Chemical Reactions and Equations
Chapter: [1] Chemical Reactions and Equations
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