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  2. Algebra - Wikipedia

    en.wikipedia.org/wiki/Algebra

    Algebra is the branch of mathematics that studies certain abstract systems, known as algebraic structures, and the manipulation of expressions within those systems. It is a generalization of arithmetic that introduces variables and algebraic operations other than the standard arithmetic operations, such as addition and multiplication.

  3. Dimanganese decacarbonyl - Wikipedia

    en.wikipedia.org/wiki/Dimanganese_decacarbonyl

    Dimanganese decacarbonyl, [3] which has the chemical formula Mn 2 (CO) 10, is a binary bimetallic carbonyl complex centered around the first row transition metal manganese.The first reported synthesis of Mn 2 (CO) 10 was in 1954 at Linde Air Products Company and was performed by Brimm, Lynch, and Sesny. [4]

  4. Ethylene oxide - Wikipedia

    en.wikipedia.org/wiki/Ethylene_oxide

    It is a cyclic ether and the simplest epoxide: a three-membered ring consisting of one oxygen atom and two carbon atoms. Ethylene oxide is a colorless and flammable gas with a faintly sweet odor. Because it is a strained ring , ethylene oxide easily participates in a number of addition reactions that result in ring-opening.

  5. Alkane - Wikipedia

    en.wikipedia.org/wiki/Alkane

    For example, cyclobutane and methylcyclopropane are isomers of each other (C 4 H 8), but are not isomers of butane (C 4 H 10). Branched alkanes are more thermodynamically stable than their linear (or less branched) isomers. For example, the highly branched 2,2,3,3-tetramethylbutane is about 1.9 kcal/mol more stable than its linear isomer, n ...

  6. History of chemistry - Wikipedia

    en.wikipedia.org/wiki/History_of_chemistry

    The solutions to Schrödinger's equation, unlike the solutions to Newton's equations, are wave functions that can only be related to the probable occurrence of physical events. The readily visualized sequence of events of the planetary orbits of Newton is, in quantum mechanics, replaced by the more abstract notion of probability .

  7. Methanol - Wikipedia

    en.wikipedia.org/wiki/Methanol

    Methanol and its vapours are flammable. Moderately toxic for small animals – Highly toxic to large animals and humans (in high concentrations) – May be fatal/lethal or cause blindness and damage to the liver, kidneys, and heart if swallowed – Toxicity effects from repeated over exposure have an accumulative effect on the central nervous system, especially the optic nerve – Symptoms may ...

  8. Ethanol - Wikipedia

    en.wikipedia.org/wiki/Ethanol

    Ethanol (also called ethyl alcohol, grain alcohol, drinking alcohol, or simply alcohol) is an organic compound with the chemical formula CH 3 CH 2 OH.It is an alcohol, with its formula also written as C 2 H 5 OH, C 2 H 6 O or EtOH, where Et stands for ethyl.

  9. Automation - Wikipedia

    en.wikipedia.org/wiki/Automation

    An example of an adjustable but otherwise fixed sequence is a timer on a lawn sprinkler. States refer to the various conditions that can occur in a use or sequence scenario of the system. An example is an elevator, which uses logic based on the system state to perform certain actions in response to its state and operator input.

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