In the reaction #CO_3^(2-) + H_2O rightleftharpoons HCO_3^- + OH^-# what is the carbonate ion acting as?
The Brønsted-Lowry base.
In this reaction, the
A Brønsted-Lowry base in an aqueous chemical reaction is one that, in the forward process, accepts a hydrogen ion in solution. We can clearly see that as the reaction proceeds, the carbonate species accepts a proton to form its conjugate acid,