noah12345678 noah12345678 19-10-2018 Chemistry contestada Please Help!!!! Which of the following equations follows the Law of Conversation of Mass A. 3H2O -----> 3H2 + 3O2 B. C + 4H2 ------> CH4 C. C2H4 + 3O2 -----> 2CO2 + 2H2O D. 2Na + Cl -----> NaCl