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Tetrafluoroethane (a haloalkane) is a colorless liquid that boils well below room temperature (as seen here) and can be extracted from common canned air canisters by simply inverting them during use. The haloalkanes (also known as halogenoalkanes or alkyl halides ) are alkanes containing one or more halogen substituents. [ 1 ]
Elimination reaction of cyclohexanol to cyclohexene with sulfuric acid and heat [1]. An elimination reaction is a type of organic reaction in which two substituents are removed from a molecule in either a one- or two-step mechanism. [2]
Mathematical chemistry [1] is the area of research engaged in novel applications of mathematics to chemistry; it concerns itself principally with the mathematical modeling of chemical phenomena. [2] Mathematical chemistry has also sometimes been called computer chemistry , but should not be confused with computational chemistry .
In organic chemistry, the Wurtz reaction, named after Charles Adolphe Wurtz, is a coupling reaction in which two alkyl halides are treated with sodium metal to form a higher alkane. 2 R−X + 2 Na → R−R + 2 NaX. The reaction is of little value except for intramolecular versions, such as 1,6-dibromohexane + 2 Na → cyclohexane + 2 NaBr.
37375–12–5 Ag 3 PO 4: silver phosphate: 7784–09–0 Ag 3 SbS 3: silver thioantimonate: 15983–65–0 Al: aluminium: 7429–90–5 AlAs: aluminium arsenide: 22831–42–1 AlB 2: aluminium diboride: 12041–50–8 AlB 12: aluminium dodecaboride: 12041–54–2 AlBr 3: aluminium bromide: 7727–15–3 AlBr 3 •6H 2 O: aluminium bromide ...
Chemistry is the scientific study of the properties and behavior of matter. [1] It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during reactions with other substances.
In organic chemistry, neighbouring group participation (NGP, also known as anchimeric assistance) has been defined by the International Union of Pure and Applied Chemistry (IUPAC) as the interaction of a reaction centre with a lone pair of electrons in an atom or the electrons present in a sigma or pi bond contained within the parent molecule but not conjugated with the reaction centre.
the use of simple arithmetic constants, e.g., in expressions such as circumference = 2 * Math.PI * radius, [1] or for calculating the discriminant of a quadratic equation as d = b^2 − 4*a*c the use of powers of 10 to convert metric values (e.g. between grams and kilograms) or to calculate percentage and per mille values