This is the home page for online material to support the course taught by Dr. Micheal Zehfus (Dr. Z.) and his wife Betty Zehfus (Mrs. Z)

If you are interested in the material for a specific course, find the course on the pull-down menu out of Course above.

If you are interested in the tutorials written by Dr. Z.that help in both Chem 106 and Chem 112, look at the Tutorials pull-down menu.  Tutorial help can also be found at http://www.chemtutor.com