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5.1.3 The energy change of reactions (HT only)

What happens to reactants during a chemical reaction?

A

A positive overall energy change means the reaction is endothermic.

B

Use displayed formulae or structures to identify the bonds in each molecule.

C

The overall change is $920 - 760 = extbf{+160 kJ/mol}$, so the reaction is endothermic.

D

Reactants are changed or used up during a chemical reaction.

5.1.3 The energy change of reactions (HT only) Flashcards

  1. GCSE
  2. /Chemistry
  3. /5.1.3 The energy change of reactions (HT only)

Flashcards for AQA GCSE Chemistry 5.1.3 The energy change of reactions (HT only), covering the key terms, definitions and equations you need to recall for Paper 1 and Paper 2. 25 cards, matched to the AQA GCSE Chemistry (8462) specification. Recall questions account for roughly 40% of marks at GCSE Chemistry, so these target the marks you can secure before the paper starts.

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