Answer
See answer below.
Work Step by Step
$\begin{array}{|l|cc|}
& Na^+ & Ba^{2+} \\
\hline
CO_3^{2-} &Na_2CO_3 - Sodium\ carbonate & BaCO_3 - Barium\ carbonate\\
I^- &NaI - Sodium\ iodide & BaI_2 - Barium\ iodide
\end{array}$