# How can I determine a Bronsted-Lowry base?

Well, what is a $\text{Bronsted Lowry base}$?
From the link....$\text{the Brønsted-Lowry acid-base theory }$ $\text{designates}$ ${H}_{3} {O}^{+}$ $\text{as the acidium species in solution............}$
$\text{and thus water}$ $O {H}_{2} ,$ $\text{is the proton carrier...........}$