The law of conservation of matter says that in chemical reactions, the total mass of the products must equal the total mass of the reactants.
Law of conservation of matter states that the same amount of matter exists before and after the change occur in the matter. Matter can neither be created nor destroyed during a chemical reaction.
So we can conclude that the law of conservation of matter says that in chemical reactions, the total mass of the products must equal the total mass of the reactants.
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