Question

hbr is an example of a(n)
base
acid
neutral

Explanation:

Hydrobromic acid ($\ce{HBr}$) is a strong acid. In the Arrhenius definition, an acid is a substance that donates hydrogen ions ($\ce{H+}$) in aqueous solution. $\ce{HBr}$ dissociates completely in water as $\ce{HBr(aq)
ightarrow H+(aq) + Br-(aq)}$. According to the Bronsted - Lowry definition, an acid is a proton ($\ce{H+}$) donor. $\ce{HBr}$ can donate a proton.

Answer:

B. Acid