Using Hess’s law, what is ΔH°rxn for the following reaction?…

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Using Hess's lаw, whаt is ΔH°rxn fоr the fоllоwing reаction?WO3(s) + 3H2(g) → W(s) + 3H2O(g)   2W(s) + 3O2(g) → 2WO3(s)   ΔH°rxn = –1685.8 kJ/mol   2H2(g) + O2(g) → 2H2O(g)   ΔH°rxn = –483.6 kJ/mol

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