9. What happens when oxygen is added to an equilibrium mixture of this reaction? 4NH3(9) +302(g) → 2N2(9) + 6 H2O(9) (A) nitrogen concentration increases (B) water concentration decreases (C) oxygen concentration remains the same (D) ammonia concentration increases

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A: Detail calculation is shown below

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A: Formal charge is the charge of individual atom in that compound.

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