Exam 12: Chemistry of the Earth

Which material is characterized by a double chain arrangement of SiO₄ tetrahedra?

Copper is NOT commonly used for

In the production of iron,"coke" is used.Coke is

Fire was one of the earliest agents that enabled chemical changes.

The extraction of aluminum from its ore requires a great deal of

Plastics form the largest proportion of solid waste in the average sanitary landfill.

Cigarette smoke and asbestos fibers act in such a way that each enhances the action of the other.This is known as a(n)________ effect.

1.00 kilogram of polyethylene produces about the same energy as ________ kg of no.2 fuel oil.

In the United States,there are adequate reserves of high-grade ores of iron and copper.

Using hydrogen (H₂)to reduce magnetite (Fe₃O₄)to iron (Fe)is considered to be "greener" than using carbon monoxide (CO)because

The most abundant element in the earth's surface is aluminum.

Aluminum is more reactive than iron,so an aluminum bar will corrode more quickly than an iron bar.

The color of quartz crystals is due to

The harmful effects of asbestos include mesothelioma.

The three major structural parts of the earth are

Silicates are compounds composed of

The United States imports almost no metals from foreign countries.

Which of the following problems is NOT created by the production of cement?

The best way to dispose of municipal solid waste is to incinerate it,because incinerators do not produce air pollution.

Glass can be colored because of the addition of ________ compounds to make a green color.