ixmr9gxphi ixmr9gxphi 03-03-2021 Chemistry contestada Which equation is obeying the Law of Conservation of Mass? A. Cu + H2SO4 → CuSO4 + H20+ SO2 B. 4Cu + S8 + 8Cu2S C. 2Fe + 302 → Fe203 D. 2Na + 2H20 → 2NaOH + H2