How is the law of conservation of mass used to balance a chemical equation?

Question

In a chemical equation, the products formed have the same atoms as the original reactants; however, the atoms may be rearranged. The law of conservation of mass states that the coefficients of atoms in the products must be equal to the coefficients of atoms in the reactants. Therefore, coefficients are used to balance the equation.

In a chemical equation, the products formed have the same atoms as the original reactants; however, the atoms may be rearranged. The law of conservation of mass states that the subscripts of atoms in the products must be equal to the subscripts of atoms in the reactants. Therefore, subscripts are used to balance the equation.

In a chemical equation, the products formed have the same atoms as the original reactants; however, the atoms may be rearranged. The law of conservation of mass states that the number of atoms of each element in the products must be equal to the number of atoms of the same element in the reactants. Therefore, subscripts are used to balance the equation.

In a chemical equation, the products formed have the same atoms as the original reactants; however, the atoms may be rearranged. The law of conservation of mass states that the number of atoms of each element in the products must be equal to the number of atoms of the same element in the reactants. Therefore, coefficients are used to balance the equation.

Answer 1

What do you think and why?

Answer 2

answer: In a chemical equation, the products formed have the same atoms as the original reactants; however, the atoms may be rearranged. The law of conservation of mass states that the number of atoms of each element in the products must be equal to the number of atoms of the same element in the reactants. Therefore, coefficients are used to balance the equation.