Wize University Biology Textbook > Chemistry of Life
Intermolecular Forces: Hydrogen Bond
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Intermolecular Forces: Hydrogen Bonding
Other than forming actual bonds between atoms, molecules can also interact with one another. The main types of these intermolecular forces are as follows.
- Involves a H atom that is covalently bonded to a highly electronegative atom (F, O, N) causing it to be partially stripped of its electrons by that atom.
- This causes a transient attractive interaction to form between the partially positive H with another partially negative (electronegative) atom. Example: water (two Hs bound to one O) loves to interact with other water molecules in that way.
*Breaking bonds requires energy, forming bonds creates energy.
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A is a covalent bond between hydrogen (H) and oxygen (O). B represents two water molecules engaging in hydrogen bonding. Although hydrogen bonding is a strong intermolecular force, covalent bonds are much stronger.
Practice: Hydrogen Bonding
Which of the following is not capable of hydrogen bonding?
Practice: Ionic Bonds
Which of the following is true about ionic bonds?
Practice: Hydrogen Bonding
Which of the circled atoms below could form hydrogen bonds with water? Select all that apply.
