Each box represents an acid solution at equilibrium. Squares represent H+ ions. Circles...

Each box represents an acid solution at equilibrium. Squares represent H⁺ ions. Circles represent anions. (Although the anions have different identities in each figure, they are all represented as circles.) Water molecules are not shown. Assume that all solutions have the same volume.

(a) Which figure represents the strongest acid?

(b) Which figure represents the acid with the smallest K_a?

(c) Which figure represents the acid with the lowest pH?