## Chemistry: The Central Science (13th Edition)

$Kc = [H+][OH-]$ heterogeneous
The expression of Kc is the concentration of the products raised to their coefficients divided by the concentration of the reactants raised to their coefficients. $Kc = [H+][OH-]$ The H2O is omitted since it is a pure liquid Since we have pure liquids and aqueous solutions, it is heterogeneous