Chemical energy is stored in all compounds, and can be released in chemical reactions.
Chemical energy is stored in all compounds, and can be released in chemical reactions. Breaking bonds always requires an input of energy, whilst the formation of new bonds always releases energy. So if the bond energy in the products of a reaction is greater than the bond energy of the reactants, the reaction will be exothermic, releasing energy as heat.
Breaking bonds always requires an input of energy, whilst the formation of new bonds always releases energy. So if the bond energy in the products of a reaction is greater than the bond energy of the reactants, the reaction will be exothermic, releasing energy as heat.