Chapters 11-13

Question 1

The amount of iron on the earth today as compared to the amount of iron 130 years ago (approximately the beginnings of the industrial revolution) is

Answer 1

Essentially the same

Question 2

The properties of glass are modified by which approach

A) firing at higher temperatures
B) addition of various metal oxides
C) glazing at low temperatures
D) substituting carbon dioxide for silicon dioxide

Answer 2

Addition of various metal oxides

Question 3

What material is characterized by a chain arrangement of SiO4 tetrahedra

Answer 3

Asbestos

Question 4

Cement is made from limestone and

Answer 4

Clay

Question 5

Which of the following is not a silicate

A) Quartz
B) asbestos
C) marble
D) mica

Answer 5

Marble

Question 6

Municipal water supplies are generally treated either with chlorine or with ozone. Which of the following statements is true?

A) Cl kills viruses, but not bacteria
B) Cl kills both bacteria and viruses
C) ozone kills both bacteria and viruses
D) ozone kills bacteria, but not viruses

Answer 6

Ozone kills bacteria and viruses

Question 7

In order for nitrogen to be used by most plants and all animals, it must be

Answer 7

Fixed

Question 8

Which of the following is not a property of water?

A) it dissolves most ionic substances
B) it has a low density than most liquids do
C) it has a high specific heat
D) it has a higher density in the liquid state than in the solid state

Answer 8

It had a lower density than most liquids do

Question 9

Which of the following is considered to be a disadvantage of Flouridating drinking water?

A) high fluoride consumption in early childhood can cause mottling of the teeth
B) The concentration of fluoride and drinking water is usually 0.7-1.0 ppm
C) some hydroxide ions in too enamel are replaced by fluoride ion
D) treatment with fluoride results and harder tooth enamel

Answer 9

High fluoride consumption is early childhood can cause mottling of the teeth

Question 10

Anaerobic depredation of organic material in water systems occurs in the absence of

Answer 10

Dissolved oxygen

Question 11

In the stratosphere, oxygen (O2) is converted to Ozone (O3) by high-energy ultraviolet light. When the equation is written and balanced using whole number coefficients the coefficient of oxygen is

Answer 11

3

Question 12

When scrap metal is recycled to make new iron and steel products, there is also a reduction in

A) water pollution
B) Air pollution
C) Energy consumption
D) all the above

Answer 12

All the above

Question 13

The second most abundant element in the earths crust is

Answer 13

Silicon

Question 14

Catalytic converters on automobiles are designed to reduce the emission of

Answer 14

Carbon monoxide

Question 15

The most abundant component of dry air is

Answer 15

Nitrogen

Question 16

A term that describes the relationship between O2 and 03 is

Answer 16

Allotropes

Question 17

Along with fertilizers which increased BOD, water is often contaminated by this class of agricultural chemicals.

Answer 17

Pesticides

Question 18

The water cycle asked to purify water by:

A) crystallization
B) evaporation and condensation
C) filtration
D) all the above

Answer 18

All the above

Question 19

Which one of the following materials as longest lasting?

A) concrete
B) brick
C) Glass
D) ceramics

Answer 19

Glass

Question 20

The concentration of what component of the atmosphere has increased dramatically since 1900

Answer 20

Carbon dioxide

Question 21

Algae bloom can be stimulated on a lake or pond by

Answer 21

Runoff of fertilizers from crops and lawns

Question 22

In terms of reactivity, ozone is best classified as

A) unreactive
B) somewhat reactive
C) similar to He
D) very reactive

Answer 22

Very reactive

Question 23

There are many different types of ceramics. Which of the following is a property of ceramic materials?

A) they may have magnetic properties
B) they may withstand extremely high temperatures
C) they may conduct electricity at extremely low temperatures
D) all the above

Answer 23

All the above

Question 24

Bronze is a(n)

A) pure substance
B) element
C) alloy
D) compound

Answer 24

Alloy

Question 25

Lakes and streams with granite rock bottoms are more susceptible to

Answer 25

Acidification

Question 26

With respect to reactivity and normal temperatures, nitrogen is best classified as A) relatively unreactive B) somewhat reactive C) comparable to helium and it's reactivity D) highly reactive

Answer 26

Relatively unreactive

Question 27

In comparing the actual relative cost of aluminum and steel, which of the following should be considered? A) cost of extracting the metal B) cost of my name and transporting the ore C) Cost of environmental maintenance D) all of the above must be considered

Answer 27

All the above

Question 28

The primary reaction in the formation of photochemical smog is

Answer 28

NO2 + sunlight ➡️ NO + O

Question 29

Secondary treatment of sewage involves: A) chlorination B) settling and sludge removal C) filtering and aeration D) all of the above

Answer 29

Filtration and aeration

Question 30

Consumption of water with high levels of nitrate is particularly hazardous to

Answer 30

Infants (baby blue)

Question 31

Even if all CFC production could be stopped today, the ozone depletion problem in the stratosphere would continue for many years because

Answer 31

CFCs are widespread and very stable in the troposphere

Question 32

Which of the following has resulted from the increase in world population A) a higher birth rate in developed countries B) a higher death rate than birth rate in developing countries C) an increase in waste generation D) a lower birth rate in devolving countries

Answer 32

.an increase in waste generation

Question 33

Which is classified as a "greenhouse gas"? A) CO2 B) methane C) chlorofluorocarbons D) all the above

Answer 33

All the above

Question 34

Acid rain is made up of two acids. They are…

Answer 34

Sulfuric and nitric

Question 35

Heat of vaporization is the amount of heat required to

Answer 35

Evaporate a liquid

Question 36

Which one of the following is not one of the principal components required for photochemical smog? A) sulfur dioxide B) sunshine C) hydrocarbons D) nitrogen oxides

Answer 36

Sulfur dioxide

Question 37

The common element of the organic portion of the lithosphere is

Answer 37

Carbon

Question 38

The majority of metals and minerals come from the

Answer 38

Lithosphere

Question 39

As opposed to most solids, one glass is heated, it

Answer 39

Gradually softens over a wide temperature range

Question 40

Ozone is a very strong A) reducing agent B) base C) oxidizing agent D) acid

Answer 40

Oxidizing agent

Question 41

The principal raw materials for making it one are iron ore, limestone and

Answer 41

Coke(carbon)

Question 42

In the troposphere, the reactivity of CFCs is

Answer 42

Low

Question 43

PPM and PPB are

Answer 43

Concentration units

Question 44

The color of Quartz crystals is due to

Answer 44

Inorganic impurities

Question 45

Silicates are compounds composed of

Answer 45

Silicon, oxygen, and metals

Question 46

The major source of all air pollutants in the U.S. is

Answer 46

Motor vehicle emissions

Question 47

Which material is characterized by a two-dimensional sheet like arrangement of SIO4 tetrahedra A) Quartz B) asbestos C) mica D) glass

Answer 47

Mica

Question 48

Which of the following statements about bottled drinking water is true? A) bottled water is safer than tap water B) bottled mineral water often contains more dissolved ions then tap water C) bottled water is healthier than tap water D) all bottled water comes from natural springs or artesian Wells

Answer 48

Bottled mineral water often contains more dissolved ions than tap water

Question 49

Aeration of drinking water A) improves flavor B) removes odor C) increases dissolved air D) all the above

Answer 49

All of the above

Question 50

Steel, and all of its variations, is a(n) A) allow B) pure substance C) element D) compound

Answer 50

Alloy