Assuming It is Iron (II)
Na2CO3 + Fe(CLO2) --> FeCO3 + Na2(CLO2)
FeCO3 forms a precipitate in aqueous solution
(2Na+) + (Fe2+) + (CLO2(2-)) + (CO3(2-)) --> FeCO3 + (2Na+) + (CLO2)(2-))
Sodium and Chlorite ions become spectator ions as they do not form precipitates on both sides of equations
(Fe2+) + (CO3(2-)) --> FeCO3
