Grade 12 Chemical Reactions Worksheet
This worksheet covers key concepts in chemical reactions for Grade 12 students, including types of reactions, stoichiometry, and reaction rates.
Includes
Standards
Chemical Reactions: Grade 12
Name:
Date:
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Read each question carefully and answer to the best of your ability. Show all your work for calculations.
1. Which of the following is NOT a type of chemical reaction?
Synthesis
Decomposition
Combustion
Precipitation
2. What is the coefficient for O₂ when the following equation is balanced: C₃H₈ + O₂ → CO₂ + H₂O?
3
5
7
10
1. A reaction that releases energy in the form of heat is called an reaction.
2. In a chemical reaction, the substances present at the beginning are called , and the substances formed are called .
1. Increasing the temperature generally decreases the rate of a chemical reaction.
True
False
2. A catalyst is consumed during a chemical reaction.
True
False
1. Distinguish between an endothermic and an exothermic reaction. Provide an example of each.
Match the type of reaction with its description.
1. Single Displacement
a. Two or more reactants combine to form a single product.
2. Double Displacement
b. An element reacts with a compound, displacing another element.
3. Synthesis
c. Two compounds exchange ions to form two new compounds.
4. Decomposition
d. A single compound breaks down into two or more simpler substances.
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