Question

C2h4-c2h5oh-c2h2-ch3coh-ch3cooh

Answer 1

Гидратация (присоединение воды) алкенов приводит к образованию спиртов.
C2H4 + H2O=C2H5OH


Мне кажется что тут упущено вещество C2H4, а иначе без него мне кажется ни как не получается то что нам требуется. Таким образом происходит дегидратация (отрыв воды) спиртов при температуре больше 140⁰С приводит к образованию алкенов ( катализатор -конц серная кислота)

C₂H₅OH --> CH₂ = CH₂ + H₂O

необходимо провести в две стадии
а) дегидрирование алкена, для образования алкина ( с тройной связью)
С₂H₄ ---> C₂H₂ + H₂
б) гидратация образовавшегося алкина. катализатор - соли ртути
С₂H₂ + H₂O --> CH₃CHO

окисление альдегида с образованием карбоновой кислоты ( при нагревании)
CH3COH + 2Cu(OH)2 ---> Cu2O + 2H2O + CH3COOH

Answer 2

The given sequence of chemical compounds is:

C2H4 - C2H5OH - C2H2 - CH3COH - CH3COOH

Here is an explanation of each compound in the sequence:

1. C2H4: This represents ethene, also known as ethylene. It is a hydrocarbon with a double bond between the two carbon atoms. It is a colorless gas and is commonly used in the production of plastics and as a plant hormone.

2. C2H5OH: This represents ethanol, which is also known as ethyl alcohol. It is a clear, colorless liquid and is the principal type of alcohol found in alcoholic beverages. It is produced by the fermentation of sugars by yeasts and is widely used as a solvent and as a fuel.

3. C2H2: This represents ethyne, commonly known as acetylene. It is a hydrocarbon with a triple bond between the two carbon atoms. Acetylene is a highly flammable gas that is used as a fuel for welding and cutting metals and as a raw material in the production of various chemicals.

4. CH3COH: This represents methyl alcohol, also known as methanol. It is a colorless liquid and the simplest alcohol. Methanol is used as a solvent, antifreeze, and as a fuel in some racing cars. However, it is highly toxic and ingestion or inhalation can be extremely dangerous.

5. CH3COOH: This represents acetic acid, which is the main component of vinegar. It is a clear, colorless liquid with a pungent smell. Acetic acid is used in the production of various chemicals, as a food preservative, and in the preparation of dyes and pharmaceuticals.

Overall, the given sequence represents a series of compounds starting from an alkene (C2H4) and progressing to an alcohol (C2H5OH), an alkyne (C2H2), another alcohol (CH3COH), and finally an organic acid (CH3COOH).