Great simulation that shows the VSEPR structures of molecules. It allows you to rotate the molecules to get a better view. Be careful with the bond angles of the models, but the bond angles of the real molecules are correct.
Not bad video about atomic emission spectrum of hydrogen. The discussion of the hydrogen emission spectrum starts around 2 minutes into the video. The whole video is not bad.
A collection of videos for Chemistry SL. Since Chemistry HL overlaps with Chemistry SL to a great degree, these videos can also be useful for Chemistry HL.
This video explains the principle of random uncertainties and systematic errors really well. However, be careful that students don't start finding errors in all of their 'good' equipment as a result of this video.
