Question

Ni2+(aq) + SO42–(aq) + 2Na+(aq) + S2–(aq) NiS(s) + 2Na+(aq) + SO42–(aq) net ionic equation ?

Answer 1

To get the net Ionic equation we must get rid of spectator ions, I.E. the ions that repeat on either side of the equation.

So...!

`Ni_(2)`
`(aq)^(+)` +
`SO_(4)(aq)^2-` +
`2Na(aq)^+` +
`S_(2) (aq)^(2) -` →
`2NiS(s)` +
`2Na(aq)^(+)` +
`SO_(4)(aq)^(2-)`

This becomes the following net ionic.

`Ni_(2)`
`(aq)^(+)` +
`S_(2) (aq)^(2) -` →
`2NiS(s)`