An endothermic reaction begins at room temperature. as the reaction proceeds, does the temperature of the . increaseb. decreasec. stay the samed. increase then decrease

Answer;

Decrease

Explanation;Chemical reaction may be either endothermic or exothermic based on whether they use heat energy or release it to the surroundings. An endothermic reaction occurs when the temperature of an isolated system decreases while the surroundings of a non-isolated system gains heat.In endothermic reactions the temperature of the surroundings decreases.

Aform of energy that is reflected or emitted from objects in the form of electrical and magnetic waves that can travel through space. there are many forms of  electromagnetic  energy including gamma rays, x rays, ultraviolet radiation, visible light, infrared radiation, microwaves and radio waves.