Calculate AHxn for the reaction 2Ni(s) + 2S(s) + 30,(g) → 2Niso,(s) from the following information: 1. Niso,(s) - Nio(s) + So,(g) = 156 kJ rxn 2. s(s) + 0,(3) so, (g) AH° =-297 kJ fxn 3. Ni(s) + 0,(g) - =-241 kJ rxn

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