compare and contrast the products and reactants of an endothermic and exothermic reaction.

Brief Explanations:

In an endothermic reaction, heat is absorbed, so products have higher energy than reactants. In an exothermic reaction, heat is released, and products have lower energy than reactants. For endothermic, energy is a reactant; for exothermic, energy is a product.

Answer:

In endothermic reactions, heat is absorbed, products have higher energy than reactants and energy is considered a reactant. In exothermic reactions, heat is released, products have lower energy than reactants and energy is considered a product.