Which of the following is not an oxidation?reduction reaction?
A) CaCO3(s) ? CaO(s) + CO2(g)
B) 2 Na(s) + Br2(g) ? 2 NaBr(g)
C) Fe(s) + 2 HCl(aq) ? FeCl2(aq) + H2(g)
D) 2 C(s) + O2(g) ? 2 CO(g)
E) 2 H2O( ) ? 2 H2(g) + O2(g)
Correct Answer:
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