There are substitutions for the flight review which will make you a more competent pilot, learn more, and in some cases it will cost you less than a regular fight review. Before we go into that lets review what a flight review is.
1 Hydrogen bonding is the strongest type of intermolecular force arising from permanent dipole permanent dipole attraction and the partially positive proton end of one molecule attracts the partially negative nitrogen (or oxygen/fluorine) lone pair end of a close neighbouring molecule.
Hydrogen bonds are the strongest of all intermolecular forces. Simply put, a hydrogen bond is an attraction between a slightly positive hydrogen on one molecule and a slightly negative atom on another molecule. Hydrogen bonds are dipole-dipole forces.