Chemical Reactions Worksheet for Grade 7
General
General
10 questions
~20 mins
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About This Worksheet
A medium difficulty Science worksheet on chemical_reactions for grade 7 students. Includes questions on Chemical Reactions.
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Chemical Reactions Worksheet for Grade 7
Subject: GeneralGrade: General
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Chemical Reactions Worksheet for Grade 7
Instructions: Answer all questions carefully. Choose the best option for multiple-choice questions and write complete answers for short-answer questions.
A
Chemical Reactions
1.
Which of the following is an example of a synthesis reaction?
[1 mark]2.
Balance the chemical equation:
__ H₂ + __ O₂ → __ H₂O
[1 mark]3.
In a decomposition reaction, a compound breaks down into:
[1 mark]4.
Identify the type of reaction:
NaCl + AgNO₃ → AgCl + NaNO₃
[1 mark]5.
Which factor can increase the rate of a chemical reaction?
[1 mark]6.
What is chemical equilibrium?
[1 mark]7.
In a redox reaction, what happens to the oxidation number of the reducing agent?
[1 mark]8.
Identify the type of reaction:
C₃H₈ + 5 O₂ → 3 CO₂ + 4 H₂O
[1 mark]9.
Calculate the amount of product formed if 4 moles of reactant A produce 8 moles of product B. What is the stoichiometric ratio?
[1 mark]10.
Which factor can slow down a chemical reaction?
[1 mark]Quick Actions
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Details
- Created
- 6/1/2025
- Updated
- 12/30/2025
- Type
- worksheet