Hi, what do you want to do?
Frostburg State University
General Chemistry Online: Molecules and Compounds
A complete lesson on compounds, from introductory material in the beginning to a practice exam at the end. This lesson covers bonding, ionic compounds, molecular compounds, naming compounds, structural formulas, polyatomic ions, and much...
CK-12 Foundation
Ck 12: Ionic Compounds
[Free Registration/Login may be required to access all resource tools.] Students investigate ionic compounds, and learn how to write chemical formulas for them.