11. Likewise, for polar molecules one may employ electric fields to achieve the desired precession. 12. Water is a polar molecule , with a net dipole moment. 13. Lipid bilayers are generally impermeable to ions and polar molecules . 14. Or the arrangement of electrons in a molecule may not be symmetrical-see polar molecule . 15. These two components allow the compound to dissolve among both polar and non-polar molecules . 16. Hydrophilic and hydrophobic molecules are also known as polar molecules and nonpolar molecules, respectively. 17. :Water is a polar molecule so it forms relatively strong intermolecular bonds with ions. 18. Polyolefins, especially polyethylene and polypropylene bond poorly, because they consist of long non-polar molecules . 19. London forces are exhibited by non-polar molecules because of the ionic bonds and hydrogen bonds. 20. Hydrophobic ligands are non-polar molecules such as hydrocarbon chains.
