Which statement about a chemical reaction supports the claim that mass is conserved?(1 point)

Question

Responses

The reactants and products have the same number of elements.
The reactants and products have the same number of elements.

The reactants and products have the same number of substances.
The reactants and products have the same number of substances.

The reactants and products have the same number of molecules of the same elements.
The reactants and products have the same number of molecules of the same elements.

The reactants and products have the same number of atoms of the same elements.

Answer 1

The statement that best supports the claim that mass is conserved in a chemical reaction is:

The reactants and products have the same number of atoms of the same elements.

This statement directly reflects the law of conservation of mass, which states that in a closed system, the mass of the reactants must equal the mass of the products, meaning that the total number of atoms remains constant throughout the reaction.