H 10 C 3 H 8 C 5 H 8 C 5 H 10 Members of a homologous series differ by their number of hydroxide groups methylene groups methane groups hydrogens double bonds Isomers have identical physical and chemical properties. An ether is an example of a functional group that contains oxygen. A polymer is made up of monomers. The simplest ketone contains two carbons.
All amines are water soluble.