SAT化学备考练习中,大家要多进行真题的练习,一方面熟悉考试的题型特点,两外一方面是掌握解题的技巧,这两方面双管齐下,SAT化学部分想要夺得高分,并不是一件难事,具体的SAT化学真题有哪些呢?下面小编为大家整理了详细的内容,供大家参考!

  Naming Organic Compounds

  How do you know it’s organic? The formula will start with a C followed by H’s. Most of the organic carbons you will encounter will be either hydrocarbons or alcohols, and luckily for you, these are the

  simplest of all to name. Learn the list of prefixes in the table following this section: they correspond to the number of carbons present in the compound. The following silly statement will help you remember the order of the first four prefixes since they are not ones you are familiar with: “Me eat peanut butter.” This corresponds to meth-, eth-, prop-, and but-, which correspond to one, two, three, and four carbons, respectively.

  Now that we have a stem, we need an ending. There are three common hydrocarbon endings; the ending changes depending on the structure of the molecule:

  ●-ane = alkane (all single bonds and saturated); CnH2n

  +2; saturated: it contains the maximum

  number of H’s

  ● -ene = alkene (contains double bond, unsaturated); Cn

  H2

  n

  ●

  -yne = alkyne (contains triple bond, unsaturated); CnH2n

  -2; polyunsaturated: it contains more

  than one double or triple bond

  For any hydrocarbon, you can remove one H and replace it with a hydroxyl group, or —OH group, to

  form an alcohol. Do not be fooled—this looks like a hydroxide group but isn’t! The OH does not make this hydrocarbon an alkaline or basic compound, nor do you name it as a hydroxide! C2H6 is ethane, while C2H5OH is ethanol. Fill in the missing formulas and names for each compound in the table:

  以上就是关于“SAT化学真题练习内容”的内容,希望通过上述内容的学习,大家对于SAT化学考试内容有更好的认识和了解,希望大家能够获得高分。


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