Ions that do not participate in a reaction are called _spectator ions
Explanation:
These spectator ions also do not affect the equilibrium of the reaction and remain the same on the reactants side as in the products' side. An example is a chemical reaction is between NaOH and HCl
The reactants will dissociate into Na+, OH-, H+, and Cl-. The OH- and H+ will react to form water but the Na+ and Cl- will stay unchanged and dissolved in the water. Even if this water is removed the Na+ and Cl- will come together electrostatically to form crystals, still unchanged
