Question: How much heat is released when a mixture containing 10.0 g NH3 and 20.0 g O2 reacts by the following equation? 4NH3(g) + 5O2(g)

How much heat is released when a mixture containing 10.0 g NH3 and 20.0 g O2 reacts by the following equation?
4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g);
∆H° = –906 kJ

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