Sources of Organic Compounds

A distilled product obtained from heating coal which contains many carbon compounds is: (Select all that apply.)

- Coal Gas - Coal Tar

Match the following. 1. The process of evaporating a liquid and condensing the vapors to form a pure substance 2. Used to separate the various compounds of a liquid mixture 3. Easily changes to a gas or vapor 4. A chemical compound composed of only hydrogen and carbon

1. Distillation 2. Fractional Distillation 3. Volatile 4. Hydrocarbon

Arrange the following alkanes in order of increasing boiling point, with one being the lowest and five being the highest. 1. One 2. Two 3. Three 4. Four 5. Five

1. Methane 2. Ethane 3. Hexane 4. Octane 5. Decane

Each year over _____ new organic compounds are produced.

100,000

The manufacture of steel is a very important process. Complete this equation by balancing it. ____Fe 2 O 3 + ____ C → ____ Fe + ____ CO 2

2, 3, 4, 3

Gasoline is that distillation fraction that has a boiling point range of ____ °C to ____ °C.

40, 206

To what temperature must propane be cooled to remain a liquid at standard sea level?

At or below -42°C

A major source of today's medicines is _____.

Coal

The residue of coal decomposition that is used in the manufacture of steel is called____.

Coke

Hydrocarbons are separated from each other by a process called cracking distillation.

False

There are many more inorganic than organic compounds.

False

As the number of carbons in the hydrocarbon increases, the boiling point ____.

Increases

About 90% of natural gas consists of:

Methane

Well over four _____ different organic compounds are known to exist.

Million

A primary source of hydrocarbons is:

Petroleum

The compound of chemicals added to natural gas to give the gas an odor contains____.

Sulfur

Carbon atoms can form chains _____ of atoms long.

Thousands

A major problem associated with the incomplete combustion of soft coal is pollution.

True

Carbon chains can form branches and cross-links.

True

Clues about the history of the earth have been obtained from the study of fossil fuels.

True

Each organic compound has distinctive chemical and physical properties.

True

Hydrocarbons contain only carbon and hydrogen.

True

Physical man is an organic being.

True

The balance of nature has its foundation in the study of organic chemistry.

True

The boiling point and distillation temperature of a substance are the same.

True