part b\nenter the formula for phosphorus tribromide.\nexpress your answer as a chemical formula.\na chemical…

part b\nenter the formula for phosphorus tribromide.\nexpress your answer as a chemical formula.\na chemical reaction does not occur for this question.
Answer
Explanation:
Step1: Identify elements and prefixes
Phosphorus is P, "tri -" means 3 for bromine.
Step2: Write chemical formula
The formula is $PBr_3$.
Answer:
$PBr_3$