## Chemistry (4th Edition)

- Bronsted acids are species that can donate a proton, therefore, it needs a "H" on it, and that hydrogen needs to be capable of "leaving": For $OH^-$ and $N{H_2}^-$, they have one "H", but the negative charges are making the donation very hard, because the molecule is attracting the proton a lot. - Bronsted bases are species capable of receiving a proton: they need a lone pair, and a electronegative atom, so the molecule can attract the proton.