Answer
Please see the work below.
Work Step by Step
We know that the required chemical reactions are
$CaCO_3+2HNO_3\rightarrow Ca(NO_3)_2+H_2O+CO_2$
and the required ionic reaction is
$CaCO_3+2H^+\rightarrow Ca^{+2}+H_2O+CO_2$
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