This causes a smoky flame. Alkenes have a functional group C=C – the part of the molecule that takes part in reactions. Alkanes, in contrast, do not have a functional group and are less reactive ...

(B) This is the structure of oleic acid, an 18-carbon unsaturated fat. The carbons of the alkene functional group ... system has been applied to this molecule. Here, counting in from the omega ...

UV light splits the bromine molecule into two reactive radicals ... of the amber color of the bromine at room temperature is characteristic of reaction with alkenes.