Khan Academy
Khan Academy: Solubility Equilibria Questions
This is a 10-question quiz pertaining to solubility equilibrium.
University of California
Ucla: Drawing Lewis Structures
A step-by-step explanation on how to draw Lewis structures. An example problem is worked through to accompany the steps. There is also a list of the exceptions and a short explanation of resonance.
Massachusetts Institute of Technology
Mit: Inventor of the Week: Gilbert Lewis
At this site from the Massachusetts Institute of Technology, you can read about the inventor of "Heavy Water," Gilbert Newton Lewis, who is "one of the most influential and admired scientists of the twentieth century."
Clackamas Community College
Clackamas Community College: Octete Rule
This resource offers a brief description of the Octet rule, along with a quick practice, and answers to the exercise.
Sophia Learning
Sophia: Polarity of Molecular Compounds: Lesson 2
This lesson will demonstrate how to use molecular shape to determine if a molecule is polar or nonpolar. It is 2 of 2 in the series titled "Polarity of Molecular Compounds."
Chem Tutor
Chem Tutor: Chemistry: Compounds
This lesson focuses on chemical compounds including Ionic and Covalent Bonds, Valences, Lewis Structures, Binary Covalent Compounds, Radicals or Polyatomic Ions, and much more. It also includes a compound worksheet in which the students...