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Calculate the standard enthalpy change, AHrxn, in kJ for the following chemical equation, using only the thermochemical equations below: 8NH3(g) + 1002(g) 8NO(g) + 12H2O(1)

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Calculate the standard enthalpy change, AHrxn, in kJ for the following chemical equation, using only the thermochemical equations below: 8NH3(g) + 1002(g) 8NO(g) + 12H2O(1) Report your answer to three significant figures in scientific notation. AH rxn (kJ) 90.4 Equations: 1/2N2(g) + 1/202(g) NO(g) 1/2N2(g) + O2(g) NO2(g) 4NH3(g) + 702(g) 4NO2(g) + 6H2O(1) 33.8 - -1326.2

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