What does X represent in the following equation? H 2(g) + 1/2O2(g) → H2O (l); ∆H = xKJ.

What does X represent in the following equation? H _2(g) + 1/2O_2(g) → H₂O _(l); ∆H = xKJ.

A Bond energy
B Activation energy
C Ionization energy
D Enthalpy of neutralization
E Enthalpy of formation

waec 1996 chemistry

The correct answer is E. Enthalpy of formation

No explanation given

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