A certain base that was purchased from a super market ionizes almost completely in water. Then it isQuestion 9Answera.weak baseb.strong basec.dilute based.concentrated base

The answer is b. Strong base.

Explanation:

A base that ionizes almost completely in water is considered a strong base. This is because the term "strong" in the context of acids and bases refers to the degree of ionization or dissociation in water. A strong acid or base is one that ionizes or dissociates almost completely, meaning nearly every molecule breaks apart.

On the other hand, a weak acid or base does not ionize or dissociate completely in water, meaning many of its molecules remain intact.

The terms "dilute" and "concentrated" refer to the amount of acid or base dissolved in water, not the degree of ionization. A dilute solution has a small amount of solute (in this case, the base) compared to the amount of solvent (water), while a concentrated solution has a large amount of solute compared to the solvent.