chemical processes and tests library
Chemical processes and tests allow chemists to ascertain the properties of various substances. By utilizing chemical processes and tests, scientists can look at life on the atomic level. Click here to find some articles on chemical processes and tests.
Featured Article: Catalysis
Catalysis, or Catalytic Action, a chemical process in which the reaction between two or more substances is influenced by the presence of a third substance called a catalyst. See more »
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Articles 1-20 of 25
Absorption
Absorption, the process by which matter or radiant energy is taken up internally, or assimilated, by a substance.
See more »Adsorption
Adsorption, the process by which a substance attracts and holds particles of another substance to its surface.
See more »Bleaching
Bleaching, the process of making a substance white by destroying its natural or artificial coloring matter.
See more »Catalysis
Catalysis, or Catalytic Action, a chemical process in which the reaction between two or more substances is influenced by the presence of a third substance called a catalyst.
See more »Chromatography
Chromatography, a technique for separating a chemical mixture into its components.
See more »Combustion
Combustion, the chemical combination of two substances accompanied by the production of light and heat.
See more »Corrosion
Corrosion, a chemical process in which metal is slowly broken down and eaten away.
See more »Diffusion
Diffusion, in physical chemistry, the movement of molecules from a region of high concentration to a region of low concentration, so that the molecules become equalay distributed throughout the system.
See more »Distillation
Distillation, the separation of one substance from another by evaporation and condensation.
See more »Dust Explosion
Dust Explosion, an explosion caused by the sudden igniting of a mixture of air and a heavy concentration of combustible dust particles.
See more »Dyes and Dyeing
Dyes and Dyeing, materials and processes used to give a permanent color to textiles, leather, fur, hair, paper, feathers, food, medicines, inks, and other substances.
See more »Electrolysis
Electrolysis, the process of decomposing a solution or a molten compound by passing an electric current through it.
See more »Electrophoresis
Electrophoresis, a process used in biology and chemistry to separate and identify particles, such as ions or colloidal particles, found in liquid mixtures.
See more »Electroplating
Electroplating, the process of coating a metal object with a thin layer of another metal by means of electrolysis.
See more »Evaporation
Evaporation, the process by which a liquid or a solid changes into a vapor. A substance may evaporate in one of two ways: (1) by changing into a vapor at the surface, as when water evaporates from an uncovered dish; or (2) by boiling, that is, by changing to vapor both within the substance as well as at its surface.
See more »Flame Test
Flame Test, a method of detecting the presence of certain metals by the colors they give off in the flame of a Bunsen burner.
See more »Freezing
Freezing, the process of changing a liquid into a solid by cooling below a certain temperature called the freezing point.
See more »Galvanizing
Galvanizing, a process by which iron or steel is coated with zinc to protect it from rust and improve its appearance.
See more »Hydrogenation
Hydrogenation, the chemical reduction of organic compounds through the addition of hydrogen molecules.
See more »Hydrolysis
Hydrolysis, chemical decomposition of a substance by water. The hydrogen and oxygen atoms of water combine with the atoms or groups of atoms of the hydrolyzed substance to form new compounds.
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