which statement correctly explains how matter is conserved in chemical reactions?

Question

A. the states of matter of the reactants are always the same as the states of matter of the products
B. The number of molecules in the reactants is always equal to the number of molecules In the products
C. The number of reactants is always equal to the number of products
D. The number of atoms in the reactants is always equal to the number of atoms in the products

Answer 1

The correct statement that explains how matter is conserved in chemical reactions is:

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

This is based on the Law of Conservation of Mass, which states that matter cannot be created or destroyed in a chemical reaction. Therefore, the total number of each type of atom must be the same on both sides of the reaction equation.