Here are some wonderful websites that have videos, extra explainations, and practice.
https://apstudent.collegeboard.org/apcourse/ap-chemistry
http://www.bozemanscience.com/ap-chemistry/
http://www.kentchemistry.com/advancedcalendar/advancedcalendar201314.htm
http://www.sciencegeek.net/APchemistry/APtaters/directory.shtml
https://apstudent.collegeboard.org/apcourse/ap-chemistry
http://www.bozemanscience.com/ap-chemistry/
http://www.kentchemistry.com/advancedcalendar/advancedcalendar201314.htm
http://www.sciencegeek.net/APchemistry/APtaters/directory.shtml