Energy ChangesMedium Exam FrequencyAQA

Exothermic Reactions

Revise Exothermic Reactions in Energy Changes for GCSE Chemistry with 20 exam-style questions and 14 flashcards. This topic appears regularly enough that it should be part of a solid GCSE revision cycle.

Sample Flashcards

What does "exo" mean?
Outside/exit — energy exits to surroundings
What is an exothermic reaction?
A reaction that releases/transfers energy to the surroundings

Sample Questions

In an exothermic reaction, energy is transferred:

  • A. From the surroundings to the reaction mixture
  • B. From the reaction mixture to the surroundings
  • C. Neither absorbed nor released
  • D. Only as light, not heat
1 markfoundation

Explain, in terms of bond breaking and bond making, why combustion is an exothermic reaction.

2 marksstandard

20

exam-style questions

14

revision flashcards

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