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Following the commercial classification of chemicals, chemicals produced by chemical industry can be divided essentially into three broad categories: commodity chemicals: are chemicals produced in large quantities and in general their applications can be traced back to their chemical structure; for this reason, two commodities produced by two ...
A science project is an educational activity for students involving experiments or construction of models in one of the science disciplines. Students may present their science project at a science fair, so they may also call it a science fair project. Science projects may be classified into four main types.
Chemical classification systems attempt to classify elements or compounds according to certain chemical functional or structural properties. Whereas the structural properties are largely intrinsic, functional properties and the derived classifications depend to a certain degree on the type of chemical interaction partners on which the function is exerted.
A science fair or engineering fair is an event hosted by a school that offers students the opportunity to experience the practices of science and engineering for themselves. In the United States, the Next Generation Science Standards makes experiencing the practices of science and engineering one of the three pillars of science education.
Here are the best science fair projects out there. ... and 8th grade. The competition, called the Broadcom Math, Applied Science, Technology, and Engineering Rising Stars (MASTERS), selects two ...
Category 2 includes gases which do not meet the above criteria but otherwise are flammable at 20 °C and standard pressure. Aerosols and chemicals under pressure are categorized into one of 3 categories, but may be additionally classified as explosives or flammable gases if material properties match the previous classifications. From category 1 ...
Chemistry: Acid-base reaction theories • Analytical chemistry • Astrochemistry • Biochemistry • Crystallography • Chemical engineering • Environmental chemistry • Food science • Geochemistry • Green chemistry • Inorganic chemistry • Materials science • Medicinal chemistry • Metallurgy • Molecular physics • Nuclear ...
Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...