Ba(OH)²+HCl

The reaction between barium hydroxide [Ba(OH)2] and hydrochloric acid [HCl] can be represented as follows:

Ba(OH)2 + 2HCl -> BaCl2 + 2H2O

In this reaction, barium hydroxide reacts with hydrochloric acid to form barium chloride [BaCl2] and water [H2O]. The balanced equation shows that one molecule of barium hydroxide reacts with two molecules of hydrochloric acid to produce one molecule of barium chloride and two molecules of water.

It's important to note that this reaction is an acid-base neutralization reaction, where the base (barium hydroxide) reacts with the acid (hydrochloric acid) to form a salt (barium chloride) and water.