What is the equilibrium constant for the following reaction: HCO2H(aq) + CN–(aq) HCO2–(aq) + HCN(aq) Does the reaction favor the formation of reactants or products? The acid dissociation constant, Ka, for HCO2H is 1.8 x 10–4 and the acid dissociation constant for HCN is 4.0 x 10–10. (A) K = 1.00. The reaction favors neither the formation of reactants nor products. (B) K = 2.2 x 10–6. The reaction favors the formation of products. (C) K = 2.2 x 10–6. The reaction favors the formation of reactants. (D) K = 4.5 x 105. The reaction favors the formation of products. (E) K = 4.5 x 105. The reaction favors the formation of reactants.