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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What type of reaction absorbs energy?
💡 Hint: Think about whether energy is added or released.
Question 2
Easy
Name one observable sign of an exothermic reaction.
💡 Hint: What happens to temperature in such reactions?
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 an exothermic reaction?
- A reaction that absorbs heat
- A reaction that releases heat
- A reaction that does not involve energy changes
💡 Hint: Remember the 'exit' part of exothermic.
Question 2
True or False: Catalysts change the overall energy change of a reaction.
- True
- False
💡 Hint: Think about what happens to the catalyst in the process.
Solve 3 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design an experiment to demonstrate an endothermic reaction using easily available materials. Describe your procedure and expected results.
💡 Hint: Consider how you can show changes in temperature.
Question 2
Explain how the presence of a catalyst affects the reaction rate in an exothermic reaction. Use examples to support your explanation.
💡 Hint: Think about how fast versus slow reactions compare with versus without a catalyst.
Challenge and get performance evaluation