Question

What is a spectator ion?A precipitate formed during the reactionAn ion that is directly involved in the reaction.An ion that is not directly involved in the reaction.A liquid formed during the reaction

Answer 1

Step 1 - What is an spectator ion?

We call spectator ions those that are not directly involved in the reaction. They only "see" the reaction happening, i.e., they are "spectators".

Step 2 - Answering the exercise

The correct answer is thus an ion that is not directly involved in the reaction.