Which of the following equations is not balanced?
A) 2 Na + 2 H2O → 2 NaOH + H2
B) C3H8 + 5 O2 → 3 CO2 + 4 H2O
C) 2 H2 + O2 → 2 H2O
D) SO2 + O2 → SO3
E) 2 Al + 6 HCl → 2 AlCl3 + 3 H2
Correct Answer:
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