The addition of energy through the chemical reaction when substance combines and gets decomposed.
Explanation:
Chemical changes take place when the substance combines with some other to form a chemical synthesis and gets alternatively decomposed into 2 different substances through chemical reactions.
As when the chemical reactions occur the atoms rearrange themselves. As these are accompanied by the energy changes.
Such as those of sodium and water to produce sodium hydroxide and hydrogen. The chemical changes are found in organic, inorganic, and biochemical changes.
