Question

А)4-метил октан Б)3-метил 4-этил пените-1 В)1,4 диметиламин бензол Г)ацитилен(этин)

Answer 1

Какое вещество в "Б"?? Если что, я написала пентен

Answer 2

It seems like you've provided a list of chemical compounds. However, it appears that the names might be a bit jumbled or incomplete. I'll do my best to interpret and provide information for each compound based on what I can understand:

A) 4-Methyl octane: 4-Methyl octane is an alkane hydrocarbon with the chemical formula C8H18. It is a branched-chain alkane with a methyl group (CH3) attached to the fourth carbon atom of the octane chain. Octane is a common hydrocarbon found in gasoline, and its various isomers, such as 4-methyl octane, contribute to the overall properties of gasoline.

B) 3-Methyl 4-ethyl pentane (penite-1): It seems like the name "penite-1" might have a typographical error or is not a commonly known compound. Assuming it's pentane instead of penite, 3-methyl 4-ethyl pentane is an alkane hydrocarbon with the chemical formula C8H18. It has a methyl group (CH3) attached to the third carbon and an ethyl group (C2H5) attached to the fourth carbon atom of the pentane chain.

C) 1,4-Dimethylamine benzene: 1,4-Dimethylamine benzene might be a misnomer. If we consider "amine" as "aminobenzene" or "aniline," then the compound becomes 1,4-dimethylaniline. The chemical formula of 1,4-dimethylaniline is C8H11N. It is an aromatic compound derived from benzene, where two methyl groups (CH3) are attached to the first and fourth carbon atoms of the benzene ring, and an amino group (NH2) is attached to the first carbon.

D) Acetylene (Ethyne): Acetylene, also known as ethyne, is a hydrocarbon with the chemical formula C2H2. It is an unsaturated compound and the simplest alkyne, consisting of a triple bond between the two carbon atoms.

Please note that chemical nomenclature should be precise and consistent to avoid confusion, and it's essential to double-check and clarify the names of chemical compounds to ensure accuracy. If you have any specific questions about these compounds or need further information, feel free to ask!