қосалқы көмірсутек

қосалқы көмірсутек

A member of a class of conjugated molecules whose carbon atoms can be divided into two sets so that members of one set are formally bonded only to members of the other set.

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Settore/Dominio: Chimica
Categoria: Chimica organica
Company: McGraw-Hill
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көмірсутек

Chimica; Chimica (generale)

Hydrocarbons are organic compounds that contain only hydrogen and carbon. The simplest hydrocarbons are the alkanes .

көмірсутек

Controllo dell'inquinamento; Inquinamento atmosferico

Compounds containing various combinations of hydrogen and carbon atoms. They may be emitted into the air by natural sources (e.g., trees) and as a result of fossil and vegetative ...

абиетин қышқылы

Chimica; Chimica organica

C 20 H 30 O 2 A tricyclic, crystalline acid obtained from rosin; used in making esters for plasticizers.

альфин катализаторы

Chimica; Chimica organica

A catalyst derived from reaction of an alkali alcoholate with an olefin halide; used to convert olefins (for example, ethylene, propylene, or butylenes) into polyolefin polymers.

бензотиазоль

Chimica; Chimica organica

C 6 H 4 SCHN A thiazole fused to a benzene ring; can be made by ring closure from o-amino thiophenols and acid chlorides; derivatives are important industrial products.

целлюлозалық

Chimica; Chimica organica

Any of the derivatives of cellulose, such as cellulose acetate.

3,5-диаминобензоқышқыл

Chimica; Chimica organica

C 7 H 8 N 2 O 2 Monohydrate crystals with a melting point of 228_C; soluble in organic solvents such as alcohol and benzene; used in the detection and determination of nitrites.

аланил

Chimica; Chimica organica

The radical CH 3 CHNH 2 CO_; occurs in, for example, alanyl alanine, a dipeptide.

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Sostenitori

Settore/Dominio: Astronomia Categoria: Galassia

Құс жолының көпіршіктері

The two giant bubbles of high-energy gamma rays protruding from the Milky Way, each spanning 25,000 light-years across, roughly the size of the galaxy ...