Polarity and Intermolecular attractions

• Hydrogen bonds form when the partial positive end of one polar covalent bond attracts the partial negative end of another polar covalent bond.
• Non-polar molecules are very weak attractive intermolecular forces.
• Van de Waales forces are very weak intermolecular forces
• Factors that influence the strength of a non-polar bond are the size of the molecule, and the distance between molecules.
• The electrons in Polar covalent bonds are not shared evenly, resulting in charge separation.
• A polar molecule cannot be a 2-fold symmetry. They have a difference in charge.
• Hydrogen Bonding is an extra strong attractive force, that forces between molecules containing an -O-H, or -N-H.