Write the net ionic equation (including phases) that corresponds to fe(clo4)2(aq)+na2co3(aq)

Fe ^2+(aq)  +CO3^2-(aq) →  FeCO3 (s)

  Fe(ClO4)2 (aq) + Na2CO3(aq)→ FeCO3 (s)  + 2 NaClO4

 Fe^2+(aq)  + 2ClO4 ^-(aq)  + 2Na^+(aq) +CO3^2- (aq) → FeCO3 (s)   + 2Na^+ + 2ClO4^-

the ionic equation  is therefore

Fe^2+(aq)   + CO3^2-  →FeCo3(s)

you did not give any options thus this is the best answer i can give to you with this little information you have given

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