Question

what is the formula for boron tribromide? what is the formula for sulfur tetrafluoride? what is the formula for sulfur trioxide?

Explanation:

Step1: Identify elements and prefixes

Prefix "tri -" means 3, "tetra -" means 4. Boron is B, bromine is Br, sulfur is S, fluorine is F, oxygen is O.

Step2: Write formula for boron tribromide

Since boron is B and bromine is Br and there are 3 bromine atoms, formula is BBr₃.

Step3: Write formula for sulfur tetrafluoride

Since sulfur is S and fluorine is F and there are 4 fluorine atoms, formula is SF₄.

Step4: Write formula for sulfur trioxide

Since sulfur is S and oxygen is O and there are 3 oxygen atoms, formula is SO₃.

Answer:

Boron tribromide: BBr₃
Sulfur tetrafluoride: SF₄
Sulfur trioxide: SO₃