олефин

олефин

A compound that consists of only carbon and hydrogen, that contains at least one carbon-carbon double bond. Alkene names end with -ene. Examples are ethylene (CH2=CH2); 1-propene (CH2=CH2CH3), and 2-octane (CH3CH2=CH2(CH2)4CH3).

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олефин шайыры

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Long-chain polymeric material produced by the chain reaction of olefinic monomers, such as polyethylene from ethylene, or polypropylene from propylene.

олефин кополимері

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Polymer made by the interreaction of two or more kinds of olefin monomers, such as butylene and propylene.

альфа олефин

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An olefin where the unsaturation (double bond) is at the alpha position, that is, between the two end carbons of the carbon chain.

майшыт

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A colloid formed from tiny liquid droplets suspended in another, immiscible liquid. Milk is an example of an emulsion.

нейтрино

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An elementary particle produced by certain nuclear decay processes. Neutrinos have no charge and extremely small masses compared to other subatomic particles.

қос жылу

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A device that senses temperature changes by using a pair of joined wires made of dissimilar metals that produces a voltage that changes with temperature.

калориметр

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An insulated vessel for measuring the amount of heat absorbed or released by a chemical or physical change.

гидроксил

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1. An -OH group within a molecule. 2. A free radical formed by abstraction of a hydrogen atom from water.

дәлдік

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Precision is reproducibility. Saying "These measurements are precise" is the same as saying, "The same measurement was repeated several times, and the measurements were all very ...