A spectator ion is defined as ions that don't participate in the chemical reaction and just appear on both sides of the equation in the same form:
1. We have to write the equation in its ionic form:
[tex]2\text{ Li }^+\text{ + 2OH}^-\text{ + Ba}^{2+}\text{ + 2Cl}^-\text{ }\rightarrow\text{ 2Li}^+\text{ + 2Cl}^-\text{ +Ba\lparen OH\rparen}_2[/tex]
Then, we enlist the repeated ions on both sides of the equation:
[tex]\begin{gathered} 1.\text{ }Li^+\text{ } \\ 2.\text{ Cl}^- \end{gathered}[/tex]
So, the answer is that the spectator ions are Li+ and Cl-.
