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Given the data in the table below, calculate the change in enthalpy under standard conditions, H:., for the following reaction: 4NH3(g)+O2(g)2N2H4(g)+2H2O(i) 390kJ 168kJ The Hf

Given the data in the table below, calculate the change in enthalpy under standard conditions, H:., for the following reaction: 4NH3(g)+O2(g)2N2H4(g)+2H2O(i) 390kJ 168kJ The Hf of O2 is needed for the calculation. 245kJ 198kJ

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