Meaning Of Organic Chemistry .

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Organic chemistry is the scientific study of branching chemistry on the structure, properties, composition, reactions, and synthesis of organic compounds. Organic compounds are constructed mainly by carbon and hydrogen, and may contain other elements such as nitrogen, oxygen, phosphorus, halogens and sulfur.Original definition of organic chemistry is derived from organic compounds misunderstanding that must have come from living organisms, but it has been proved that there are some exceptions. In fact, life is also very dependent on inorganic chemistry, as an example of many enzymes work based on transition metals, such as iron and copper, as well as teeth and bone, and composition is a mixture of organic and inorganic compounds. Other examples are HCl solution, this solution plays a major role in the process of digestion is almost all organisms (especially the higher organisms) using a solution of HCl to digest food, which is also classified in inorganic compounds.

 Regarding the element carbon, inorganic chemicals usually associated with the simple carbon compounds that do not contain bonds between carbon as oxides, salts, acids, calcium carbide, and minerals. But this does not mean that there is not a single carbon compounds in organic compounds such as methane and its derivatives.Chemical reactions on carbon compounds can be grouped into several types, including an addition reaction, esterification, polymerization, yodoform, redox reactions, substitution and elimination reactions. In this trial will be observed on addition reactions, substitution and esterification, which each have a characteristic reaction.

 Addition reaction is a reaction of a compound with the incorporation of specific reagents that accompanied changes in the bonding of these compounds such as bond tigamenjadi duplicate or even be a single duplicate. Esterification reaction is a reaction in which the ester bond formation in these experiments ester made from alcohols and carboxylic acids using an acid catalyst.The carbon atom of an alkyl halide end mempuyai partial positive charge. Carbon is susceptible to attack by the anion and any other species that have a lone pair of electrons in its outer shell. Substitution reaction produced a reaction in which an atom, ion or group substituted for replacing atoms, ions or other groups. 

Questions :
- what is so typical of carbon, so as to form so many compounds and a major part of chemistry?

- as we know one of materials organic is detergent , by using this materials gradually we ruin the comunity all elements on the land , but why are we keeping use it continuesly?