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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is an exothermic reaction?
💡 Hint: Think about examples like burning or respiration.
Question 2
Easy
Name one example of an exothermic reaction.
💡 Hint: Consider processes that produce heat.
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. Absorbs energy
- B. Releases energy
- C. No energy change
💡 Hint: Think about how heat is involved.
Question 2
True or False: In an exothermic reaction, the products have higher energy than the reactants.
- True
- False
💡 Hint: Consider the energy profile diagram.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If a chemical reaction releases 150 kJ of energy, what is the change in enthalpy? How does this relate to the concept of exothermic reactions?
💡 Hint: Think about how energy changes correlate with signs in thermodynamics.
Question 2
Explain the role of catalysts in exothermic reactions and compare their function to energy profile diagrams.
💡 Hint: What does this mean for how an exothermic reaction proceeds over time?
Challenge and get performance evaluation