In the reaction `NH_(3) + H_(2)O hArr NH_(4)^(+) + barOH`, the conjugate acid-base pair is

In the reaction : HCN+H_(2)O hArr H_(3)O^(+)+CN^(-) the conjugate acid - base pair is

The reaction HCN +H_(2)O hArr H_(3)O^(+)+CN^(-), the conjugate acid base pair is

In the reaction HNO_(3)+H_(2)O hArr H_(2)O ^(+) +NO_(3)^(-) the conjugate base of HNO_(3) is

The conjugate base of NH_(3) is

The following are equations for dissociations of a compound. NH_(3(aq)) + H_2O_(I) harr NH_(4(aq))^+ + OH_(aq)^(-) Identify the conjugate acid-base pair.

H_2CO_3 ionises in two stages as represented below H_2CO_3 +H_2O hArr H_3O^(+) +HCO_3^(-) , HCO_3^(-) +H_2O hArr H_3O^(+) CO_3^(2-) the no. of conjugate acid -base pairs in the above reaction are