Question

question
what acid is formed from the bromide ion?
answer
$h_2br$
$hbr$
$hbro_4$
$hbr_2$
i dont know yet

Explanation:

The bromide ion is $\text{Br}^-$, a monovalent negative ion. To form a neutral acid, it combines with one $\text{H}^+$ ion (a monovalent positive ion), resulting in a 1:1 ratio of hydrogen to bromide.

Answer:

B. HBr