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5.1 Exothermic and endothermic reactions

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Question 18
H

In an exothermic reaction, how do the energy changes for breaking bonds and making bonds compare?

[1]
A

The energy released making bonds is greater than the energy needed to break bonds

B

The energy needed to break bonds is greater than the energy released making bonds

C

The energy needed to break bonds is equal to the energy released making bonds

D

No energy is needed to break bonds, so all the energy released is transferred out

Markscheme

5.1 Exothermic and endothermic reactions Questions

  1. GCSE
  2. /Chemistry
  3. /5.1 Exothermic and endothermic reactions

39 exam-style questions on AQA GCSE Chemistry 5.1 Exothermic and endothermic reactions, covering 5.1.1 Energy transfer during exothermic and endothermic reactions, 5.1.2 Reaction profiles, and 5.1.3 The energy change of reactions. Each one has a worked solution and a mark scheme showing where the marks go.

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