write the correct net ionic equation and identify spectator ions when CoSO4 and BaCL2 mix

Answer 1

CoSO4(aq) + BaCl2(aq) ==> CoCl2(aq) + BaSO4(s) is the molecular equation.

net is
SO4^2-(aq) + Ba^2+(aq) ==> BaSO4(s)
The spectator ions are those that don't show up in the net equation.