In a chemical reaction, the number of atoms in reactants must equal the number of atoms in the products is known as the

Answer 1

The principle that states the number of atoms in reactants must equal the number of atoms in the products in a chemical reaction is known as the Law of Conservation of Mass. This law asserts that mass is neither created nor destroyed in a chemical reaction, meaning that the total mass of the reactants must equal the total mass of the products, leading to the conclusion that the number of atoms of each element must remain constant throughout the reaction.