How much energy is given off by the following reaction, if 162.5 g of oxygen reacts with 216.7 g of ammonia (NH3)? (16 pts)
4 NH3 + 5 02 → 4 NO + 6 H2O
AH = -1225.6 kJ

A) +1245 kJ
B) +39830 kJ
C) -39830 kj
D) -1245 k)

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explanation: