Are you a former student taking some chemistry?? Are you looking for old chemistry videos to brush up on your stoichiometry skills?? Due to an update in Googles security settings you may have difficulty seeing the video. If this is the case email me and I will adjust the settings.
Useful Website for general chemistry practice problems:
Are you bored? Try balancing some chemical equations!!
Useful apps for these classes:
For Android from the Play Store
For iPhone or iPad from the App Store