To determine the chemical formula for hypobromite, we need to understand the basic chemistry of the hypohalite ions, which include hypochlorites, hypobromites, and hypoiodites. Hypohalite ions generally follow the pattern [tex]\(XO^-\)[/tex], where [tex]\(X\)[/tex] is a halogen.
1. Identify the Hypohalite Prefix:
- The prefix "hypo-" indicates that the halogen is in its lowest possible oxidation state in the oxyanion series.
2. Recognize the Halogen:
- In this case, the halogen is bromine ([tex]\(Br\)[/tex]).
3. Combine the Halogen with Oxygen:
- We need to pair the bromine with one oxygen atom to form the hypobromite ion.
4. Balance the Charge:
- The ion has a single negative charge, denoted as [tex]\(BrO^-\)[/tex].
Thus, the chemical formula for hypobromite is [tex]\(BrO^-\)[/tex]. Among the given options, the correct answer is:
A. [tex]\( BrO^{-} \)[/tex]
