Consider the total ionic equation below.

ba2++2no3-+2na++co2/3- > > > > > > baco3 +2na++2no3-

which is the net ionic equation for the reaction?

Answer;

Ba²⁺(aq) + CO₃²⁻(aq) → BaCO₃(s)

Explanation;

Ionic equation is a chemical equation that is written only showing the ions that have changed state in the course of a reaction. The rest ions called spectator ions are not involved in the reaction and do not change state thus they are not included when writing ionic equations.

-Aqueous compounds ionize in water to form corresponding ions, while precipitates, gases and pure liquids do not.

In our case; The only ions involved are Ba²⁺ and Co3²⁻, the rest are spectator ions, that is, NO3⁻ and Na⁺.

Thus the ionic equation will be;

Ba²⁺(aq) + CO₃²⁻(aq) → BaCO₃(s)

the awnser is group 12