Answer and explanation

Correct answer: C. It releases heat to the surroundings, and

  1. Step 1: Exothermic means heat leaves the system. Step 2. The enthalpy change is negative. **Answer: heat released, . Why not the others:** absorbing heat is endothermic, and a catalyst does not change whether heat is released.

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What is true of an exothermic reaction? | French Baccalaureat