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5.1 Exothermic and endothermic reactions

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Question 6
F

Which statement explains why the oxidation of iron is described as exothermic?

[1]
A

Iron oxide is formed, and forming a compound always takes in energy

B

The iron becomes hotter than the air around it before the reaction starts

C

Oxygen from the air is taken in, so energy must be taken in as well

D

Energy is transferred from the reacting substances to the surroundings

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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