An endothermic reaction begins at room temperature. As the reaction proceeds, does the temperature of the reaction ... a. 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.