Answer – When weak base pyridine, C5H5N added in the water there is ionization of weak base pyridine, C5H5N to C5H5NH+ and OH-. The water acts as acid and C5H5N acts a base and it abstract the H from water. Balanced equation for the ionization of the weak base pyridine, C5H5N, in water, H2O - C5H5N(aq) + H2O(l) <-----> C5H5NH+ (aq) + OH-(aq) Solution Answer – When weak base pyridine, C5H5N added in the water there is ionization of weak base pyridine, C5H5N to C5H5NH+ and OH-. The water acts as acid and C5H5N acts a base and it abstract the H from water. Balanced equation for the ionization of the weak base pyridine, C5H5N, in water, H2O - C5H5N(aq) + H2O(l) <-----> C5H5NH+ (aq) + OH-(aq).