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=== Role of [[Oxygen]] === ...face of the [[polymer]] also plays a role in [[polymer]] [[combustion]]. [[Oxygen]] is better able to interact with the [[polymer]] before a flame has actual

| Function = heterocycles ...mplest [[epoxide]], a three-membered ring consisting of two carbon and one oxygen atom. Because of its special molecular structure, ethylene oxide easily par

In [[heterocyclic chemistry|heterocycles]], carbon atoms in the benzene ring are replaced with other elements. The m In bacteria, [[dioxygenase]] enzyme can add an [[oxygen]] molecule to the ring, and the unstable product is immediately reduced (by

...[[anion]] forms complexes with many [[transition metal]] ions wherein both oxygen atoms bind to the metal to form a six-membered chelate ring. Some examples *Precursor to heterocycles: Acetylacetone is a versatile precursor to heterocycles. Hydrazine reacts to produce pyrazoles. Urea gives pyrimidines.