Chemistry 0620 · IGCSE · Exothermic and endothermic reactions

Exothermic and endothermic reactions — practice question

An energy level diagram for the reaction between magnesium and hydrochloric acid is shown. Which of the statements about the reaction is incorrect?

  • AEnergy is given out during the reaction.
  • BThe products are at a lower energy level than the reactants.
  • CThe reaction is endothermic.
  • DThe temperature increases during the reaction.

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