Select the correct answer.
Which of the following is a correctly balanced equation?
A. Nacloz - NaCl + 302
B. 2Hgo - 2Hg + O2
C. 2ZnS + 02 - 2ZnO + 2502
D. 400 + Fe304 - 4002 + Fe
E. 2Fe + 2Cl2 - 2FeCl3