Give Bronsted concept of acids.

Explanation

According to this concept, an acid is a substance which can donate hydrogen `[H^(+)]` ions, while base is a substance which can accept hydrogen `[H^(+)]` ions. For example, `HCl, H_(2)SO_(4)` act as acids, while `NH_(3), R-underset(..)overset(..)(O)-H` act as bases.