Fill in the Blanks AminesOnline version Exercise about Amines. Erasmus+ by Alessandro Perri 1 nitrogen hydrogens hydrogen atoms connectivity atoms organic ammonia nitrogen chain substituents ring carbon Amines are compounds which contain and are often actually based on one or more of . Structurally amines resemble in that the can bond up to three , but amines also have additional properties based on their . In an amine , one or more of the from ammonia are replaced by organic like alkyl ( alkane ) and aryl ( aromatic ) groups .