MEDIUM
10th CBSE
IMPORTANT
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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.

Important Questions on Chemical Reactions and Equations

HARD
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Short Answer Type Questions>Q 20
Write a 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.
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Short Answer Type Questions>Q 21
What is a balanced chemical equation? Why should chemical equations be balanced?
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Short Answer Type Questions>Q 21
Aluminium burns in chlorine to form aluminium chloride (AlCl3). Write a balanced chemical equation for this reaction.
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Short Answer Type Questions>Q 21
Potassium metal reacts with water to give potassium hydroxide and hydrogen gas. Write a balanced chemical equation for this reaction.
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Short Answer Type Questions>Q 22
Explain, with an example, how the physical states of the reactants and products can be shown in a chemical equation.
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Short Answer Type Questions>Q 22
Balance the following equation and add state symbols:
Zn+HCl⟶ZnCl2+H2
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Short Answer Type Questions>Q 22
Convey the following information in the form of a balanced chemical equation:
"An aqueous solution of ferrous sulphate reacts with an aqueous solution of sodium hydroxide to form a precipitate of ferrous hydroxide and sodium sulphate remains in solution."
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 1 - Chemical Reactions and Equations>Short Answer Type Questions>Q 23
Write any two observations in an activity which may suggest that a chemical reaction has taken place. Give an example in support of your answer.