Question

match each covalent compound with the formula that represents it:

chemical name | formula
--- | ---
trisulfur pentoxide | ?
phosphorus tribromide | ?
nitrogen difluoride | ?
bromine monochloride | ?

answer bank
nf₂, p₃br₃, s₃o₇, brcl₅, brcl, nf, pbr₃, s₃o₅

Explanation:

Step1: Analyze trisulfur pentoxide

The name "trisulfur pentoxide" indicates 3 sulfur (S) atoms and 5 oxygen (O) atoms. So the formula should be \( S_3O_5 \).

Step2: Analyze phosphorus tribromide

"Phosphorus tribromide" means 1 phosphorus (P) atom and 3 bromine (Br) atoms. The formula is \( PBr_3 \).

Step3: Analyze nitrogen difluoride

"Nitrogen difluoride" has 1 nitrogen (N) atom and 2 fluorine (F) atoms. The formula is \( NF_2 \).

Step4: Analyze bromine monochloride

"Bromine monochloride" has 1 bromine (Br) atom and 1 chlorine (Cl) atom. The formula is \( BrCl \).

Answer:

• trisulfur pentoxide: \( S_3O_5 \)
• phosphorus tribromide: \( PBr_3 \)
• nitrogen difluoride: \( NF_2 \)
• bromine monochloride: \( BrCl \)