Which of the following is a correctly balanced equation?
A. 2 P4 + 12 H2 ? 8 PH3
B. P4 + 3 H2 ? PH3
C. 1 P4 + 6 H2 ? 4 PH3
D. 0 P4 + 6 H2 ? 4 PH3
E. P4 + 6 H2 ? 4 PH3
Answer: E
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