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{{stub}}A '''hydrogen bond''' is an attraction between [[Chemical polarity|polar molecules]]. They are formed when oppositely charge ends of polar molecules are attracted to one another. This weak attractive force is the hydrogen bond.

A '''hydrogen bond''' is an attraction between [[chemical polarity|polar molecules]]. They are formed when oppositely charged ends of polar molecules are attracted to one another. This weak attractive force is the hydrogen bond.

Hydrogen bonds are responsible for the double-helical structure of [[DNA]], the bouyancy of ice in water, and for the tertiary and quaternary structure of [[Protein|proteins]]. Hydrogen bonds are relatively weak, especially compared with [[Metallic bond|metallic]], [[Ionic bond|ionic]] or [[Covalent|covalent]] bonds.

Hydrogen bonds are responsible for the double-helical structure of [[DNA]], and for the tertiary and quaternary structure of [[protein]]s. Hydrogen bonds are relatively weak, especially compared with [[metallic bond|metallic]], [[ionic bond|ionic]] or [[covalent]] bonds. They are stronger than [[van der Waals]] forces.

[[Category:Chemistry]]

[[Category:Chemistry]]