Asked by tj

It is important for scientists to know how much energy is given off or absorbed in a chemical reaction. Which options below would indicate an exothermic reaction?

mr001-1.jpgH = –

mr001-2.jpgH = +

Energy is considered a reactant in the reaction: A + B + energy mr001-3.jpg C + D

Energy is considered a product in the reaction: A + B mr001-4.jpg C + D + energy

Energy is released in the reaction.

Energy is absorbed in the reaction.

All Answers 1

Answered by GPT-5 mini AI
The exothermic choices are:
- ΔH = – (negative enthalpy change)
- Energy is a product: A + B → C + D + energy
- Energy is released in the reaction

(The other options—ΔH = +, energy as a reactant, and energy absorbed—describe endothermic reactions.)