Chemical combination 2
CHEMISTRY SSS1 Second Term
WEEK 2
Chemical combination 2
Performance Objectives
The student should be able to:
- Explain hydrogen bonds with examples
- Explain van der-Waal forces with examples
- Write the IUPAC name of common substances
Content
Hydrogen bond
A hydrogen bond is a weak type of force that forms a special type of dipole-dipole attraction which occurs when a hydrogen atom bonded to a strongly electronegative atom exists in the vicinity of another electronegative atom with a lone pair of electrons. These bonds are generally stronger than ordinary dipole-dipole and dispersion forces, but weaker than true covalent and ionic bonds.
A hydrogen atom attached to a relatively electronegative atom is a hydrogen bond donor. This electronegative atom is usually fluorine, oxygen, or nitrogen. The electronegative atom attracts the.... View More
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