What is the reaction for the standard enthalpy of formation for Mn2O3(s) ? (Mn(s) is the stable form of manganese.)
A) Mn(s) + 3/4 O2(g) → 1/2 Mn2O3(s)
B) MnO(s) + MnO2(s) → Mn2O3(s)
C) 2 Mn(s) + O3(g) → Mn2O3(s)
D) 2 MnO(s) + 1/2 O3(g) → Mn2O3(s)
E) 2Mn (s) + 3/2 O2 (g) → Mn2O3(s)
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