When H₂(g) reacts with O₂(g) according to the following reaction, 59.02 kcal of energy are evolved for each mole of H₂(g) that

Question

When H₂(g) reacts with O₂(g) according to the following reaction, 59.02 kcal of energy are evolved for each mole of H₂(g) that reacts. Complete the following thermochemical equation. 
2H₂(g) + O₂(g) →→→ 2H₂O(g) ΔH =
kcal

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