Answer:
The ionic equation is the one that expresses both reactants and products as ions when they are dissociated in aqueous solutions.
In this case we have the following chemical reaction:
[tex]Mg(NO_3)_2(aq)+Na_2CO_3(aq)\rightarrow MgCO_3(s)+2NaNO_3(aq)[/tex]So the ionic equation is the following:
[tex]Mg^{+2}+2NO_3^-+2Na^++CO_3^{-2}\rightarrow MgCO_3+2Na^++2NO_3^-[/tex]As we can see magnesium carbonate is not an ion in aqueous solution so it is not expressed as one,
