Question

1. what is the bond angle of boron trichloride (0.5 points) *

109.5
107.8
104.5
120
180

1. write the formula for diphosphorus trioxide (0.5 points) *

enter your answer

Explanation:

Step1: Determine BCl₃ structure

Boron trichloride (BCl₃) has boron with 3 bonding pairs (no lone pairs). Its electron geometry is trigonal planar.

Step2: Find bond angle for trigonal planar

Trigonal planar geometry has bond angles of 120°.

Step3: Name to formula for diphosphorus trioxide

"Di-" means 2 phosphorus atoms, "tri-" means 3 oxygen atoms. So formula is P₂O₃.

Answer:

120
P₂O₃