Question

How do exothermic reactions differ from endothermic reactions?A. Exothermic reactions release energy as heat, while endothermicreactions absorb energy as heat.B. Exothermic reactions indicate a chemical change, whileendothermic reactions indicate a physical change.C. Exothermic reactions require activation energies, whileendothermic reactions occur spontaneously.D. Exothermic reactions occur only at high temperatures, whileendothermic reactions occur at low temperatures.

Answer 1

A. Exothermic reactions release energy as heat, while endothermic reactions absorb energy as heat.

Explanation:

An Endothermic Reaction is a chemical reaction that absorbs energy in the form of light or heat. In it, the energy or enthalpy of the reactants is less than that of the products. An Exothermic Reaction is a chemical reaction that gives off energy in the form of light or heat.