Respuesta :
Answer:
D. numbers of molecules
Explanation:
Remember that in a balanced equation the mass of the system must remain constant throughout the change due to the Law of Conservation of Mass. It identifies that in a balanced chemical equation matter is neither created nor destroyed, only conserved. So in a balanced equation, the number of molecules is equal on both sides (Reactant side and Product side).
D.
Law of conservation of mass. The number of atoms gave to be equal on both sides since atoms cannot be created or destroyed
Law of conservation of mass. The number of atoms gave to be equal on both sides since atoms cannot be created or destroyed