A buffer is prepared with $N{a}_{2}C{O}_3$ and $NaHC{O}_3.$ What is the correct net ionic equation describing what happens when a small amount of NaOH is added to the buffer? l $HC{O}_3^{-}(aq)+O{H}^{-}(aq)=C{O}_3^{2-}(aq)+H_{2}O(l).H_{2}C{O}_3(aq)+O{H}^{-}(aq)=HC{O}_3^{-}(aq)+H_{2}O(1)HC{O}_3^{-}(aq)+H_{2}O(l)=H_{2}C{O}_3(aq)+H_3{O}^{+}(aq)$