question 3\nwrite the formula for the following compound: potassium bromide\nkb\nbk\nbr\nkbr

Answer:

A. KBr

Explanation:

Step1: Identify ions

Potassium forms $K^+$ ion, bromine forms $Br^-$ ion.

Step2: Determine formula

For a neutral compound, one $K^+$ combines with one $Br^-$ to form KBr.