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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What type of reaction releases energy to the surroundings?
💡 Hint: Think about burns or heating processes.
Question 2
Easy
What is the term for the minimum energy needed for a reaction to occur?
💡 Hint: It's the energy that 'kicks off' a reaction.
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 type of reaction absorbs energy from its surroundings?
- A) Exothermic
- B) Endothermic
- C) Catalytic
💡 Hint: Remember photosynthesis.
Question 2
True or False: Catalysts are consumed during a reaction.
- True
- False
💡 Hint: Think about enzymes in biology.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If the enthalpy change of a reaction is +200 kJ, is this reaction endothermic or exothermic? Justify your answer.
💡 Hint: Recall that positive ΔH signifies energy absorption.
Question 2
Construct an energy profile diagram for a given exothermic reaction and label key components, including reactants, products, and activation energy.
💡 Hint: Visualize the energy path.
Challenge and get performance evaluation