Presentation of the alkanes       Petroleum       Petroleum refinery (video)       The combustion of alcanes       The complete combustion of butane: video       The incomplete combustion of butane: video       Reactions of chlorine on methane (video)       Reactions of alkanes on halogens       Substitution of hexane by bromine (video)       Substitution of cyclohexane by bromine (video)       Radical substitution of methane by bromine (mechanism)       Exercises