Chemistry 5070 · O Level · Exothermic and endothermic reactions

Exothermic and endothermic reactions — practice question

Which statements concerning the energy changes in a chemical reaction are correct?

  • A1 and 2 only
  • B1 and 3 only
  • C2 and 3 only
  • D1, 2 and 3

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI