Exothermic and Endothermic Chemical Reactions

Key Stage 4 Science / Chemistry

Sample Question

What is the difference between exothermic and endothermic reactions?

  • Exothermic reactions release energy, while endothermic reactions absorb energy
  • Exothermic reactions absorb energy, while endothermic reactions release Exothermic reactions release energy, while endothermic reactions absorb energy
  • Exothermic reactions are associated with positive enthalpies of reaction, while endothermic reactions are associated with negative enthalpies of reaction
  • Exothermic reactions have at least three reactants, while endothermic have only one or two
  • Endothermic reactions have at least three reactants, while exothermic have only one or two

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Quipper School UK Curriculum

Key Stage 4 Science

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