Chemical reactions

A handy helper for those who want to explore the chemistry

This application is not just to write the result of the reaction, and describe in detail all the options reactions under different conditions. You'll also find a handy chart Mendeleva, table solubility of the elements, as well as a number of electronegative elements. Chemical reactions can help you discover the chemistry on the other hand, more clearly and extensively. Chemical reaction - the transformation of one or more of the starting materials (reactants) to other substances, in which atomic nuclei do not change, this is accompanied by a redistribution of electrons and nuclei, and new chemical substances are formed. Unlike nuclear reactions in chemical reactions not change the total number of atoms and nuclei isotopic composition of chemical elements.

 Chemical reactions occur when mixing or physical contact of reagents spontaneously when heated, the participation of catalysts (Catalysis), the action of light (photochemical reactions), an electric current (electrode processes), ionizing radiation (radiation-chemical reactions), mechanical impact (mechano-chemical reactions) temperature plasma (plasma-chemical reactions), and so on. n.

 The interaction of the molecules with each other takes place by a chain route: Association - electronic isomerization - dissociation, in which active species are radicals, ions, conences. The reaction rate is determined by the concentration of active particles and the difference between the binding energies ruptured and formed. The chemical processes occurring in the material, and differ from the physical processes, and by nuclear transformation. The physical processes of each of the substances involved keeps unchanged its composition (although the substance may form a mixture), but can change the external form or physical state. In chemical processes (chemical reactions) new compounds are obtained with excellent properties on the reactants, but never atoms form new elements. The atoms of the elements involved in the response necessarily occurring modifications of the electron shell. In nuclear reactions are changes in the nuclei of all the elements involved, which leads to the formation of the new atomic elements.

 Using chemical reactions can obtain virtually any substance, which in nature are of limited amounts, for example, nitrogen fertilizers, either do not occur for some reasons, such as sulfonamides and other synthetic drugs, polyethylene and other plastics. Chemistry allows the synthesis of new, unknown nature of the substances necessary for human life. However, inept or irresponsible chemical impact on the environment and on the leaking natural processes can lead to a violation of the established natural chemical cycles, making the actual environmental problem (pollution) and complicates the management of natural resources and the conservation of natural habitats in the world .

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