When a base reacts with an acid, the products formed are salt and water. This is a classic example of a neutralization reaction.

Here's the general equation:

Acid + Base → Salt + Water

Example:

* HCl (hydrochloric acid) + NaOH (sodium hydroxide) → NaCl (sodium chloride) + H₂O (water)

Let's break down the terms:

* Acid: A substance that donates hydrogen ions (H+) in solution.

* Base: A substance that accepts hydrogen ions (H+) in solution.

* Salt: An ionic compound formed from the reaction of an acid and a base. The salt typically consists of the cation from the base and the anion from the acid.

* Water: Formed from the combination of hydrogen ions (H+) from the acid and hydroxide ions (OH-) from the base.

Important Note: Not all acid-base reactions are simple neutralization reactions. Some reactions may involve the formation of other products, depending on the specific acid and base involved.