daniellaxsanchez daniellaxsanchez 23-02-2019 Chemistry contestada which of the following equations is balanced and follows the Law of Conservation of Mass? A. 2Fe + 3O —> Fe2O3 B. H2 + O2 —> 2OH C. 2Mg + CI —> MgCI2 D. CH4 + 3O2 —> 2CO2 + 2H2O