Write the conjugate acids of the following bases and give reason: `OH^(-),H_(2)PO_(4)^(-),O^(2-),HS^(-),SO_(3)^(2-),H_(2)O,HCO_(3)^(-),NH_(2)^(-),NH_(3),H^(-),C_(6)H_(5)NH_(2),S_(2)O_(8)^(2-),CO_(3)^(2-)`.

Explanation

According to Bronsted-Lowry concept, a base is proton acceptor. When a base accepts a proton, the conjugate acid of the base is formed. The conjugate acid of a base contains one more H-atom than the base.
Therefore, the conjugate acids of `OH^(-),H_(2)PO_(4)^(-),O^(2-),HS^(-),SO_(3)^(2-),H_(2)O,HCO_(3)^(-),NH_(2)^(-),NH_(3),H^(-),C_(6)H_(5)NH_(2),S_(2)O_(8)^(2-) and CO_(3)^(2-)` are `H_(2)O,H_(3)PO_(4),OH^(-),H_(2)S,HSO_(3)^(-),H_(3)O^(+),H_(2)CO_(3),NH_(3),NH_(4)^(+),H_(2),C_(6)H_(5)NH_(3)^(+),HS_(2)O_(8)^(-) and HCO_(3)^(-)` respectively.