Summary:
- A hydrogen bond is an intermolecular attractive force in which a hydrogen atom that is covalently bonded to a small, highly electronegative atom is attracted to a lone pair of electrons on an atom in a neighboring molecule.
- Hydrogen bonds are very strong compared to other dipole interactions.
- Because of the strong hydrogen bonds, water molecules are able to stay condensed in the liquid state.
- When water is frozen to ice, the hydrogen bonds become permanent and form a very specific network.