Here is your answer Explanation:CHEMICAL ENERGY BECAUSE The formation of a compound occurs when the compound is more stable than the constituents were when they were alone. There are two different sorts of chemical reactionsthose that take in energy - endothermicthose that give off energy - exothermicExothermic reactions RESULT when the chemical BONDS between atoms in molecules are reformed or when the overall result of a chemical reaction is the making of bonds.The reactants fall into their most stable available state by giving up energy. These bonds all involve atomic electrons. The nuclei of the constituents remain unchanged.To understand this think of a golf ball falling into a hole in the ground. It is more stable than that same golf ball on the ground, because the one on the ground could fall into the hole. The one in the hole can fall no farther. It gave up gravitational energy to fall into the hole. To bring it back out off the hole involves PAYMENT of an energy PRICE. The ball MUST gain as much energy as it lost going into the hole to get out again.I HOPE MY ANSWER WILL BE HELPFUL FOR YOU PLEASE MARK ME AS BRAINLIEST