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chemical characteristics

См. также в других словарях:

  • Chemical hydrology — or hydrochemistry is the subdivion of hydrology that deals with the chemical characteristics of water …   Wikipedia

  • chemical element — Introduction also called  element,         any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed.       This article considers the… …   Universalium

  • chemical hydrology — or hydrochemistry Subdivision of hydrology that deals with the chemical characteristics of the water on and beneath the surface of the Earth. Water in all forms is affected chemically by the materials with which it comes into contact, and it can… …   Universalium

  • Chemical biology — is a scientific discipline spanning the fields of chemistry and biology that involves the application of chemical techniques and tools, often compounds produced through synthetic chemistry, to the study and manipulation of biological systems.… …   Wikipedia

  • chemical engineering — chemical engineer. the science or profession of applying chemistry to industrial processes. [1900 05] * * * Academic discipline and industrial activity concerned with developing processes and designing and operating plants to change materials… …   Universalium

  • Chemical vapor deposition of ruthenium — is a method to deposit thin layers of ruthenium on substrate by Chemical vapor deposition (CVD). A unique challenge arises in trying to grow impurity free films of a catalyst in Chemical vapor deposition (CVD). Ruthenium metal activates C H and C …   Wikipedia

  • Chemical brain preservation — is the process of preparing the brain, or entire central nervous system for long term, high quality storage. Unlike cryopreservation, chemical techniques do not require freezing and storage at extremely low temperatures. There is currently… …   Wikipedia

  • chemical compound — Introduction  any substance composed of identical molecules consisting of atoms (atom) of two or more chemical elements (chemical element).       All the matter in the universe is composed of the atoms of more than 100 different chemical elements …   Universalium

  • chemical bonding — ▪ chemistry Introduction       any of the interactions that account for the association of atoms into molecules, ions, crystals, and other stable species that make up the familiar substances of the everyday world. When atoms approach one another …   Universalium

  • chemical weapon — Introduction       any of several chemical compounds, usually toxic agents, that are intended to kill, injure, or incapacitate enemy personnel. In modern warfare, chemical weapons were first used in World War I (1914–18), during which gas warfare …   Universalium

  • Chemical industry — Oil refinery in Louisiana an example of chemical industry The chemical industry comprises the companies that produce industrial chemicals. Central to the modern world economy, it converts raw materials (oil, natural gas, air, water, metals, and… …   Wikipedia

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