The thermite reaction, in which powdered aluminum reacts with iron oxide, is highly exothermic. Use the standard enthalpies of formation given to find the ∆H°rxn for the thermite reaction.
2 Al + Fe2O3 → Al2O3 + 2 Fe
∆H Fe2O3 = -824.2 kJ/mol
∆H Al2O3 = -1675.7 kJ/mol
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