alkene

alkene的音标是["ælkɪn]，意思是烯。为了快速记忆这个单词，可以编一个有趣的记忆速记：烯烃家族真神奇，碳碳双键不停移。

Alkene这个词来源于拉丁语“alkyn”和希腊语“alkos”的组合，意为“烯”。它的变化形式包括alkyne（烯基）、alkylic（烯基的）、alkalene（烯醇）等。

相关单词：

1. Ethene（乙烯）: 是一种常见的烯烃，是石油化工产业的基础原料，也是有机合成的重要中间体。

2. Propylene（丙烯）: 是石油化工的重要原料，主要用于生产聚丙烯、丙烯腈、环氧丙烷等产品。

3. Butylene（丁烯）: 是一种常见的无色液体，主要用于生产聚丁烯、聚合物等产品。

4. Alkyl（烷基）: 是有机化合物中常见的一种基团，由烷烃失去氢原子形成的基团。

5. Alkylate（烷基酯）: 是一种有机化合物，是油脂加工和纺织工业中的重要原料。

6. Alkali alkene（碱烯烃）: 是一种具有特殊性质的烯烃，可以被碱金属或碱土金属等碱金属离子取代。

7. Acetylenic alkene（炔烯）: 是一种具有特殊性质的烯烃，含有碳碳叁键。

8. Aromatic alkene（芳香烯烃）: 是一种含有芳香环的烯烃，具有特殊的化学性质和用途。

9. Cyclopropene（环丙烯）: 是一种具有特殊性质的烯烃，是由碳原子组成的环状分子。

10. Cyclobutene（环丁烯）: 是一种含有两个碳碳叁键的环状烯烃，具有特殊的化学性质和用途。

常用短语：

1. alkene + oxygen = alkoxide

2. alkene + halogen = alkali halide

3. alkene + hydrogen halide = alkali metal hydride

4. alkene + metal = alkali metal alkene

5. alkene + metal oxide = alkali metal oxide

6. alkene + alcohol = alkali alcoholate

7. alkene + acid = alkali salt

双语例句：

1. The double bond in alkenes can undergo various reactions, such as oxidation, halogenation, hydrogenation, reduction, polymerization, and hydrolysis.

2. Alkene is a kind of organic compound that can be used in the production of polymers, surfactants, and other materials.

3. The presence of alkene groups in polymers can affect their mechanical properties and thermal stability.

4. The reaction of alkene with oxygen produces an alkoxide that can be used in the production of other organic compounds.

5. Halogenation of alkene is a common method for producing halogenated organic compounds.

6. Alkene can be used to produce alkali metal hydrides, which are important intermediates in the synthesis of organic compounds.

7. Alkene can also react with alcohol to form alkali alcoholates, which are useful in the production of surfactants and other organic compounds.

英文小作文：

Alkene is an organic compound that plays an important role in chemical industry. It is widely used in the production of polymers, surfactants, and other materials. Alkene can undergo various reactions such as oxidation, halogenation, hydrogenation, reduction, polymerization, and hydrolysis. These reactions allow alkene to be transformed into various useful products. In addition, alkene can react with oxygen to produce an alkoxide that can be used in the production of other organic compounds. Halogenation of alkene is another common method for producing halogenated organic compounds. These compounds are widely used in the pharmaceutical, agrochemical, and other industries. In summary, alkene is an important organic compound that plays a crucial role in the chemical industry and has a wide range of applications in various fields.