The ionization of the following acids and bases can be expressed as follows : 
(A ) HI + water →← H + (aq) + I -(aq) 
(B) KOH + H2O →← K+(aq) + OH- (aq) 
(C)HNO2(l) + H2O →← H+(aq) +NO2-(aq)
(D)H2PO4- + H2O →← H + (aq) + HPO4 ^2- (aq) 
(E)CHNH2 + H2O→← CH3NH3+(aq) + OH-(aq) 
(F)CH3CH2COOH +H2O→←CH3CH2COO-(aq) + H3O+(aq)