Chemistry 0620 · IGCSE · Exothermic and endothermic reactions

Exothermic and endothermic reactions — practice question

The energy change for an exothermic reaction is represented in the diagram below. Which reactions would this diagram fit?

  • Anone of them
  • B1 and 2 only
  • C2 and 3 only
  • Dall of them

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