Question

Which statement correctly explains how matter is conserved in chemical reactions? (1 point)

A. The number of atoms in the reactants is always equal to the number of atoms in the products.

B. The states of matter of the reactants are always the same as the states of matter of the products.

C. The number of reactants is always equal to the number of products.

D. The number of molecules in the reactants is always equal to the number of molecules in the products.

Answer 1

The statement correctly explaining the conservation of matter in chemical reactions is option A.) “The number of atoms in the reactants is always equal to the number of atoms in the products.”

According to the Law of Conservation of Matter, matter cannot be created nor destroyed. This means when a chemical process is underway, matter can’t be destroyed or created during the cycle. Balanced chemical equations, such as photosynthesis, prove the Law of Conservation of Matter to be correct because the same number of atoms were sustained on both sides of the equation.