polar molecule definition chemistry
By Anne Marie Helmenstine, Ph.D. Polar Molecule Definition: A polar molecule is a molecule containing polar bonds where the sum of all the bond's dipole moments is not zero.Examples: Water is a polar molecule.Carbon dioxide is made up of polar bonds, but the dipole moments cancel each other out and therefore is not a polar molecule.xamples: Water is a polar molecule. Carbon dioxide is made up of polar bonds, but the dipole moments cancel each other out and therefore is not a polar molecule.