## Introductory Chemistry (5th Edition)

a. $O_{3}$ is a polar molecule and it has it has dispersion, dipole-dipole forces. b. $HBr$ is a polar molecule and it has it has dispersion, dipole-dipole forces. c. $CH_{3}OH$ is a polar molecule and H is bonded to O, so it has dispersion, dipole-dipole forces, and hydrogen bonds. d. $I_{2}$ is an element and it has dispersion forces