Explanation:
The chemical reaction equation will be as follows.
[tex]Cr_{2}SO_{4}(aq) + 3(NH_{4})_{2}CO_{3}(aq) \rightarrow Cr_{2}(CO_{3})_{3}(s) + 3(NH_{4})_{2}SO_{4}(aq)[/tex]
In the form of ions, reaction equation will be as follows.
[tex]2Cr^{3+}(aq) + 3SO^{2-}_{4}(aq) + 6NH^{+}_{4}(aq) + 3CO^{2-}_{3}(aq) \rightarrow Cr_{2}(CO_{3})_{3}(s) + 6NH^{+}_{4}(aq) + 3SO^{2-}_{4}(aq)[/tex]
Now, cancelling the spectator ions, the net reaction equation will be as follows.
[tex]2Cr^{3+}(aq) + 3CO^{2-}_{3}(aq) \righatrrow Cr_{2}(CO_{3})_{3}(s)[/tex]
