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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a catalyst?
💡 Hint: Think about what happens to the catalyst after the reaction.
Question 2
Easy
Give one example of a catalyst.
💡 Hint: Consider substances that help in reactions but are not used up.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the main function of a catalyst?
- To produce energy
- To speed up reactions
- To change the reactants
💡 Hint: Think about how catalysts influence the speed of reactions.
Question 2
Enzymes are examples of what kind of catalysts?
- True
- False
💡 Hint: Remember how enzymes facilitate processes in living organisms.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given that the activation energy without a catalyst is 100 kJ/mol and with a catalyst is 40 kJ/mol, calculate the percentage reduction in activation energy.
💡 Hint: Remember to subtract the two values and divide by the original activation energy!
Question 2
Design an experiment to test the effect of temperature on the rate at which an enzyme works. What factors need to be controlled?
💡 Hint: Think about what environmental conditions can affect biochemical reactions!
Challenge and get performance evaluation