In chemical reaction, atoms
always are rearranged. They are never destroyed or created because it would
contradict the law of conservation of energy. The law of conservation of energy
states that energy can neither be created nor destroyed, but can change from
one form to another. Also it cannot be neutralized. Resulting in one cannot be
part of a chemical reaction. An example of this is the reaction HCl + NaOH
-> NaCl + H2O. the reactants and products are not created, they are just
formed into another substance.
