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August 23, 2014

Homework Help: Chemistry please check

Posted by Mary on Monday, February 25, 2008 at 8:50pm.

1. Which of the following would occur as saturated hydrocarbons?

alkanes
alkenes
alkynes
cycloalkynes

ans: alkanes

2. There are millions of organic compounds but only thousands of inorganic compounds because

atoms of elements other than carbon never combine with themselves
organic compounds were formed by living things
carbon atoms can combine with up to four other atoms, including other carbon atoms
there is more carbon on the earth's surface that any other element.

ans: there is more carbon on the earth's surface that any other element

3. Propanol and iso-propanol have

the same physical and chemical properties
the same physical, but different chemical properties
different physcial, but the same chemical properties
different physical and chemical properties

ans: the same physical, but different chemical properties

4. What is ethanol converted into when wine "goes bad?"

CH3COOH
CH3OCH3
CH3CH2OH
CH3OH

ans: CH3COOH

5. when a solvent is cooled, it will dissolve

more solid
more gas
less gas
the same amount of solid or gas

ans: more gas

6. what would paint thinner, a petroleum distillate, most likely contain?

C2H4
C5H12
C17H34
C40H82

ans: C40H82

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