Alkanes

This video takes a fairly in-depth look at the formation of sigma and pi bonds in carbon compounds. It addresses both sp3 and sp2 hybridisation, using them to explain the shapes and stabilities of the molecules involved: methane, ethene and benzene.

This video looks at the first 7 alkanes - explaining how they are named, how they can be represented by different formulae and how their molecules appear in 3d.

This video is for advanced chemistry students. It looks in detail at the reaction of methane and chlorine gases in ultraviolet light. Referred to as "free radical substitution", I help you to track the movement of electrons in this organic complex mechanism.