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Some of the classes of organic compounds include aliphatic compounds, chains of carbon which may be modified by functional groups; aromatic hydrocarbons, compounds containing one or more benzene rings; heterocyclic compoundHeterocyclic compounds are substances which contain a ring structure as found in benzene and the aromatic compounds, or aromatic hydrocarbons, but in which other atoms than carbon, such as sulfur, oxygen or nitrogen are found as part of the ring. Some exas which include non-carbon atoms as part of a ring structure; and polymerA polymer is a long, repeating chain of atoms, formed through the linkage of many molecules called monomers. The monomers can be identical, or in complex polymers such as proteins the monomers have one or more substituted chemical groups, this gives thems, which are long chains of repeating groups.
The dividing line between organic and inorganic is somewhat controversial and historically arbitrary, but generally speaking, organic compounds have
carbon- hydrogenhydrogen helium H Li Full table General Name, Symbol, NumberHydrogen, H, 1 Chemical series nonmetals Group, Period, Block 1 (IA), 1 , s Density, Hardness 0. 0899 kg/m3, NA Appearance colorless Atomic properties Atomic weight 1. 00794 amu Atomic radius (ca bonds, and inorganic compoundsInorganic chemistry is the branch of chemistry concerned with the properties and reactions of inorganic compounds. This includes all chemical compounds except the many which are based upon chains or rings of carbon atoms, which are termed organic compound do not. Thus carbonic acidProperties General Name Carbonic acid Chemical formula H C O Carbonic acid is a weak acid with the chemical formula of H C O. It is the reaction product of water and carbon dioxide and exists in an equilibrium with water and carbon dioxide whenever the la is inorganic, whereas formic acidProperties General Name Formic acid Chemical formula C H O Formula weight 46. 03 amu Synonyms methanoic acid aminic acid, hydrogencarboxylic acid CAS number 64-18-6 Phase behavior Melting point 281. 4 °C) Boiling point 373. 8°C) Triple point 281. 3°C) 0., the first fatty acidIn chemistry, especially biochemistry, a fatty acid is a carboxylic acid (or organic acid), often with a long aliphatic tail (long chains), either saturated or unsaturated. Most of the natural fatty acids have an even number of carbon atoms, because they, is organic, although it could as well be called "carbonous acid" and its anhydride, carbon monoxide, is inorganic.The name "organic" is a historical name, dating back to 19th century, when it was believed that organic compounds could only be synthesised in living organisms through vis vitalis - the "force of life".
Most pure organic compounds are artificially produced. Ironically the term "organic" is also used to describe products produced without artificial chemicals. See organic production.
See also organic chemistry, inorganic chemistry of carbon.
See list of compounds for a list of all compounds currently in Wikipedia.