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Each of the following equilibrium constant expressions has a mistake. Identify the mistake and pick the correct expression for each of the following reactions at equilibrium. (a) 4 NH3(g) + 7 02(g) -=- 4 NO2(g) + 6 H20(g) Kc —[NH3]4[02]7 [NO2]4[H20]6 error in the equilibrium expression: (Select all that apply.) Some products or reactants are missing. Some products or reactants are incorrectly included. The products and reactants have been switched. Superscripts are missing. Superscripts are incorrectly included. correct equilibrium expression: Kc —[NO 2i14 [NH3]4[02]7 Kc —[NH3]4[02]7 [NO2]4 Kc —[NO2]4[H20]6 [NH3]4[02]7 Kc —[NO2][H20] [NH3][02] (b) Ba(OH)2(aq) + 2 HCI(aq) = BaCl2(aq) + H20(I) Kc —[BaCl2][H20] [Ba(OH)2][HCI] error in the equilibrium expression: (Select all that apply.) Some products or reactants are missing. Some products or reactants are incorrectly included. The products and reactants have been switched. Superscripts are missing. Superscripts are incorrectly included. correct equilibrium expression: [BaCl2][H20] Kc — [Ba(OH)2][FICV [Ba(OF)2][FICI]2 Kc [BaCl2] [BaCl2] IQ = [Ba(OH)2][FICV [BaCIA Kc [Ba(OF)2][FICI]