The law of chemistry that states that matter cannot be created or destroyed is known as the Law of Conservation of Mass. This law, also known as Lavoisier's Law, states that in a chemical reaction or a physical change, the total mass of the substances involved remains constant. The atoms are rearranged or combined in different ways, but the overall amount of matter remains the same. This principle is a fundamental concept in chemistry and is often utilized in stoichiometry calculations to determine the mass relationships between reactants and products in a chemical reaction.
