Practice The Role of Energy in Chemical Transformations - 7.1 | Chapter 7: Energy Changes in Chemical Reactions | IB 9 Chemistry
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The Role of Energy in Chemical Transformations

7.1 - The Role of Energy in Chemical Transformations

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Define an exothermic reaction.

💡 Hint: Think about what happens in combustion.

Question 2 Easy

What happens during an endothermic reaction?

💡 Hint: Consider temperature changes observed.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What type of reaction releases energy?

Endothermic
Exothermic
Neither

💡 Hint: Remember, exo means 'out'.

Question 2

True or False: Endothermic reactions feel warmer to the touch.

True
False

💡 Hint: Think about ice melting!

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Describe how the activation energy in a biological system might differ from that in an industrial process. Provide examples.

💡 Hint: Think about the role of temperature and catalysts in both scenarios.

Challenge 2 Hard

How do energy profile diagrams help predict the feasibility of a reaction? Create an example diagram for a hypothetical reaction.

💡 Hint: Refer to the class examples of energy diagrams for guidance.

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