I haven't had a flight review in over ten years but I fly almost every day. Before you get on the phone to the local FSDO to report me for a violation of the regulations remember there are many activities that can substitute for a flight review. I was reminded of this when my friend Rick Felty told me that he did well on his recent BFR.
From strongest to weakest, the intermolecular forces rank in the following way: Strongest: Hydrogen bonding. This occurs when compounds contain O-H, N-H, or F-H bonds. Though referred to as hydrogen bonding, it's not a real bond but just a really strong intermolecular force. Less strong: Dipole-dipole forces. This takes place when polar compounds are attracted to one another. Weakest: London Dispersion Forces.
Intramolecular and intermolecular forces. 1  Types of intramolecular forces of attraction. 2  Relative strength of the intramolecular forces. 3  Intermolecular forces of attraction. 4  Types of intermolecular forces that exist between molecules. 5  Relative strength of intermolecular forces of attraction. 6  How forces of attraction affect properties of compounds. Polar covalent compoundsâlike hydrogen chloride, HCl\text{HCl}HClH, C, l, and hydrogen iodide, HI\text{HI}HIH, Iâhave dipole-dipole interactions between partially charged ions and London dispersion forces between molecules.