Question

Which statement best describes the difference between endothermic and exothermic reactions? They are opposites because endothermic reactions require energy and exothermic reactions release energy. They are opposites because endothermic reactions release energy and exothermic reactions require energy. They the same because they are both ways of forming precipitates. They the same because they are both ways of forming gasses.

Answer 1

They are opposites because endothermic reactions require energy and exothermic reactions release energy.

Step-by-step explanation:

Answer 2

Endothermic reactions are which absorbs energy from outside the system while exothermic reactions give off or releases energy outside the system.

Answer:
They are opposites because endothermic reactions require energy and exothermic reactions release energy.