How can energy be changed in a chemical reaction? Energy Changes in Chemical Reactions: All chemical substances contain energy in the form of chemical energy.During chemical reactions, the chemical energy in the reactants can be changed into other forms,…

How does the energy level diagram show this reaction is exothermic? Energy profile diagrams for endothermic and exothermic reactionsEvery chemical substance has a certain amount of chemical energy. This energy is given the symbol H and is different for …