Question

The balanced equation representing the standard enthalpy of formation reaction for NH3(g) is
A) N(g) + H2(g) →NH3(g).
B) N2(g) + 3H(g) →NH3(g).
C) N(g) + 3H(g) →NH3(g).
D) N2(g) + H2(g) →NH3(g).
E) N2(g) + H2(g) →NH3(g).

Answer

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