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Based on the thermochemical equation below, what is the enthalpy change (DH), in kJ, when 14.80 g of hydrogen gas is combusted completely in presence...

Based on the thermochemical equation below, what is the enthalpy change (DH), in kJ, when 14.80 g of hydrogen gas is combusted completely in presence of oxygen gas to produce water?

2 H2(g) + O2(g) à 2 H2O(l) DH = -571.6 kJ

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