ChemCollective - Virtual labs, visualizations, and tutorials on a variety of chemistry topics such as stoichiometry, equilibrium, properties of solutions.
Chemistry of Color - Not a chemistry lesson, but an interesting video covering a past exhibit at the Indianapolis Museum of Art, which explains the chemistry of color as a timeline.
Crash Course Chemistry - a YouTube Playlist. Topics in chemistry include the electron, solutions, precipitation, reactions.
Khan Academy - starts with an introduction to basic chemistry. Topics include atoms, bonds, acids and bases.
Periodic Videos- Videos from TED-Ed about every element in the periodic table.
Beginner's Chemistry- No frills lessons from Purdue Chemistry.