We have this reaction :

HCO3- + OH- => CO3^-2 + H2O

Specify the conjugate pairs
and , which direction the reaction equilibrium shift ? and How ( as a rule ) ?

1 answer

Why do you have the problem identifying the conjugate pairs?
The pair consists of the one with more H and the one with less H. And for CO3^2- it should be obvious not to pick H2O as its conjugate pair.