Khan Academy
Khan Academy: Single and Multiple Covalent Bonds
Explains what covalent bonds are and the difference between them and ionic bonds. Discusses the properties of polar and non-polar covalent bonds, and single and multiple covalent bonds, and gives analogies and examples of how covalent...
CK-12 Foundation
Ck 12: Polarity in Chemical Bonds
[Free Registration/Login may be required to access all resource tools.] Students will determine the polarity of a chemical bond using the electronegativity chart, and then distinguish between nonpolar covalent, polar covalent, and ionic...
Khan Academy
Khan Academy: Biology: Chemistry of Life: Chemical Bonds
Review over covalent, hydrogen, and ionic bonding in this article. Learn how molecules are held together by chemical bonds.
Other
Chem Cases: Nutra Sweet: Physical and Chemical Properties
An in-depth look at the physical and chemical properties of aspartame, or NutraSweet.