Select the net ionic equation for the reaction that occurs when sodium carbonate and nickel(II) nitrate are mixed. The result of mixing the solutions is shown in the image.

Ni^2+(aq) + CO3^2-(aq) > NiCO3(s)

Explanation:

First let us put down the molecular equation of the reaction

Na2CO3(aq) + Ni(NO3)2(aq)> 2NaNO3(aq) +NiCO3(s)

Hence ionically, we will have the reaction as;

Ni^2+(aq) + CO3^2-(aq) > NiCO3(s)

The ionic equation usually indicate the ions that actually take part in the reaction. They often lead to the formation of the solid product or precipitate.

The order ions that are no shown in the ionic reaction equation are called spectator ions.

Hence, the reaction shown in the answer is the ionic reaction equation for the mixing of nickel II nitrate and sodium carbonate.

14 days is the half-life of phosphorus-32