If your teacher uses the Virtual Lab in class and you're looking for your assigned homework or quizzes, look for your teacher's name on the Instructor Sites page.

You can also use this site for review and practice in various areas of chemistry. For example, if you need some help with stoichiometry or buffers, visit these interactive tutorials.

We also have practice problems for the following topics:

For useful reference tools and online simulations, see these applets:

If you're looking for scenarios that relate chemistry to real life situations, try these problems:

Even more activites can be found here.