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Nitric oxide reacts with oxygen to form nitrogen dioxide: 2 NO(g) + O2(g)⇌2 NO2(g) What is Kc for the forward reaction if the equilibrium concentration of NO is 0.200 M, O2 is 0.100 M, and NO2 is 0.250 M at 25°C? A) 8.00 × 10^-2 B) 12.5 C) 6.41 × 10^-2 D) 15.6