Grade 12 Chemical Reactivity Worksheet
This worksheet covers key concepts in chemical reactivity for Grade 12 chemistry students, including reaction rates, equilibrium, and factors affecting them.
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Grade 12 Chemical Reactivity
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Read each question carefully and provide detailed answers based on your understanding of chemical reactivity.
1. Which of the following factors generally increases the rate of a chemical reaction?
Decreasing temperature
Decreasing reactant concentration
Increasing surface area of reactants
Removing a catalyst
2. What happens to a reversible reaction when it reaches equilibrium?
The forward reaction stops
The concentrations of reactants and products become equal
The rates of the forward and reverse reactions are equal
The reverse reaction stops
3. A substance that increases the rate of a chemical reaction without being consumed in the reaction is called a .
4. Le Chatelier's principle states that if a change of condition is applied to a system in equilibrium, the system will shift in a direction that the stress.
5. Explain how temperature affects the rate of a chemical reaction.
6. Describe the concept of activation energy and its role in chemical reactions.
7. Adding a catalyst shifts the position of equilibrium in a reversible reaction.
True
False
8. Observe the image below, which depicts a thermite reaction. Explain why this reaction is considered highly reactive, referencing concepts like activation energy and enthalpy.
