1. The problem statement, all variables and given/known data Given the following reactions Fe2O3 + 3CO ---> 2Fe + 3CO2 DeltaH = -28.0kJ 3Fe + 4CO2 ---> 4CO + Fe3O4 DeltaH = 12.5kJ the enthalpy of the reactions of Fe2O3 with CO 3Fe2O3 + CO ---> CO2 +2Fe3O4 what is DeltaH for this equation? ________ kJ 2. Relevant equations DeltaH = H(products) - H(reactants) 3. The attempt at a solution I've tried to switch the equations around to isolate certain solutions but I've had no luck at all, I would really appreciate some help on this problem.