Question 1

Ozone is formed in the atmosphere by the combination of oxygen molecules with

Accepted Answer

A)   chlorofluorocarbons.
B)   hydrocarbons.
C)   oxygen atoms.
D)   CO2.
E)   ClO.F) A) and D)
G) None of the above

Question 2

In the mid-1980's which of the following was discovered?

Accepted Answer

A)   greenhouse gases
B)   Antarctic ozone hole
C)   radon gas
D)   CO poisoning in homes
E)   benzene in the Mississippi RiverF) A) and C)
G) D) and E)

Question 3

What is readily liquefied, relatively inert, nontoxic, noncombustible, and volatile and has been used as a coolant in refrigerators and air conditioners but is harmful to the ozone layer in the stratosphere?

Accepted Answer

A)   antifreeze
B)   SO2
C)   ammonia
D)   0.444 m
E)   FreonF) A) and E)
G) D) and E) E

Question 4

Acid rain is less of a threat to lakes and streams in areas where the bedrock is limestone (CaCO3) . Which of the following is the equation for neutralization of acid by limestone?

Accepted Answer

A)   CaCO3 + 2OH- → Ca(OH) 2 + CO2
B)   CaCO3 + 2H3O+ → Ca2+ + CO2 + 3H2O
C)   CaCO3 + H3O → Ca + CO2 + H2O
D)   CaCO3 + OH- → Ca2+ + CO2 + H2O
E)   CaCO3 + 2H3O+ → Ca2+ + CO2 + 2H2OF) B) and C)
G) B) and D)

Question 5

The presence of ozone in the upper atmosphere is important because

Accepted Answer

A)   O3 absorbs outgoing radiation from the Earth's surface, thus helping to keep the Earth warm.
B)   O3 absorbs harmful solar radiation.
C)   O3 dissolves in water droplets and is very reactive.
D)   O3 is a major reactant in photosynthesis.E) A) and B)
F) C) and D)

Question 6

Give two important reasons why there is so much more Na+ in the oceans than K+, despite their similar abundances in the Earth's crust.

Accepted Answer

Clays bind K⁺ more effectively ...

Question 7

Which of the following areas of the atmosphere is closest to Earth's surface?

Accepted Answer

A)   troposphere
B)   stratosphere
C)   mesosphere
D)   thermosphere
E)   ionosphereF) B) and E)
G) A) and B)

Question 8

Which region of the atmosphere contains the ozone layer?

Accepted Answer

A)   thermosphere
B)   mesosphere
C)   stratosphere
D)   troposphereE) C) and D)
F) A) and B)

Question 9

Suppose that ammonia, applied to a field as a fertilizer, is washed into a farm pond containing 3.0 × 106 L of water. If the pH of this pond is found to be 9.81, what volume of liquid ammonia found its way into the pond? [Given: Kb(NH3)  = 1.8 × 10-5; the density of liquid ammonia is 0.771 g/cm3]

Accepted Answer

A)   15 L
B)   25 L
C)   11 L
D)   20 L
E)   320 LF) A) and C)
G) C) and E)

Question 10

Which is not a characteristic property of a chlorofluorocarbon?

Accepted Answer

A)   Relatively innert
B)   Readily liquified
C)   Toxic
D)   Use as coolantsE) A) and C)
F) A) and B)

Question 11

Which statement about ozone and the ozone layer is true?

Accepted Answer

A)   Ozone is found in a band of almost pure ozone several kilometers thick encircling the Earth.
B)   The ozone in the ozone layer absorbs UV light between 200 and 300 nm.
C)   Ozone is a compound with the chemical formula CO2.
D)   In the Earth's atmosphere, ozone exists only in the ozone layer.
E)   Ozone is used as a coolant in refrigerators and air conditioners.F) All of the above
G) D) and E)

Question 12

The Aurora Borealis is due to

Accepted Answer

A)   disruptions of the ozone layer.
B)   relaxation of excited oxygen atoms and ionized N2 molecules.
C)   the production of NO.
D)   lightning.E) None of the above
F) A) and C)

Question 13

Ozone (O3)  and oxygen gas (O2)  are examples of

Accepted Answer

A)   isotopes.
B)   allotropes.
C)   polymorphs.
D)   alloys.
E)   amphoterism.F) All of the above
G) B) and E)

Question 14

What happens to nitrogen dioxide in sunlight? Write the reaction for this process.

Accepted Answer

It decomposes. NO₂(g) + hν → NO(g) + O(g)

Question 15

What are the primary pollutants from automobile exhaust?

Accepted Answer

NO, CO, an...

Question 16

What are the common indoor pollutants?

Accepted Answer

CO, CO₂, an...

Question 17

What is the name given to the incoming streams of solar protons and electrons oriented by Earth's magnetic field occurring in the Northern Hemisphere?

Accepted Answer

A)   northern auroras
B)   Aurora australis
C)   northern celesta ions
D)   Aurora borealis
E)   solar flaresF) All of the above
G) C) and D)

Question 18

The air at sea level is ~80% oxygen and ~20% nitrogen.

Accepted Answer

A) True 
 B)False  False

Question 19

Currently the CO2 content of Earth's atmosphere is approximately

Accepted Answer

A)   1%.
B)   20%.
C)   25 ppm.
D)   330 ppm.
E)   600 ppm.F) All of the above
G) B) and D)

Question 20

The normal process occurring on Earth that warms its surface and the lower atmosphere is called

Accepted Answer

A)   photosynthesis.
B)   vaporization of water.
C)   incomplete combustion.
D)   the greenhouse effect.
E)   the ozone hole.F) D) and E)
G) A) and D)

Exam 21: Environmental Chemistry

Ozone is formed in the atmosphere by the combination of oxygen molecules with

Correct Answer
verified

In the mid-1980's which of the following was discovered?

Correct Answer
verified

What is readily liquefied, relatively inert, nontoxic, noncombustible, and volatile and has been used as a coolant in refrigerators and air conditioners but is harmful to the ozone layer in the stratosphere?

Correct Answer
verified
E

Acid rain is less of a threat to lakes and streams in areas where the bedrock is limestone (CaCO₃) . Which of the following is the equation for neutralization of acid by limestone?

Correct Answer
verified

The presence of ozone in the upper atmosphere is important because

Correct Answer
verified

Give two important reasons why there is so much more Na⁺ in the oceans than K⁺, despite their similar abundances in the Earth's crust.

Correct Answer
verified
Clays bind K⁺ more effectively ...
View Answer

Which of the following areas of the atmosphere is closest to Earth's surface?

Correct Answer
verified

Which region of the atmosphere contains the ozone layer?

Correct Answer
verified

Correct Answer
verified

Which is not a characteristic property of a chlorofluorocarbon?

Correct Answer
verified

Which statement about ozone and the ozone layer is true?

Correct Answer
verified

The Aurora Borealis is due to

Correct Answer
verified

Ozone (O₃) and oxygen gas (O₂) are examples of

Correct Answer
verified

What happens to nitrogen dioxide in sunlight? Write the reaction for this process.

Correct Answer
verified
It decomposes. NO₂(g) + hν → NO(g) + O(g)

What are the primary pollutants from automobile exhaust?

Correct Answer
verified
NO, CO, an...
View Answer

What are the common indoor pollutants?

Correct Answer
verified
CO, CO₂, an...
View Answer

What is the name given to the incoming streams of solar protons and electrons oriented by Earth's magnetic field occurring in the Northern Hemisphere?

Correct Answer
verified

The air at sea level is ~80% oxygen and ~20% nitrogen.

Correct Answer
verified
False

Currently the CO₂ content of Earth's atmosphere is approximately

Correct Answer
verified

The normal process occurring on Earth that warms its surface and the lower atmosphere is called

Correct Answer
verified

Exam 21: Environmental Chemistry

Ozone is formed in the atmosphere by the combination of oxygen molecules with

Correct AnswerverifiedShow Answer

In the mid-1980's which of the following was discovered?

Correct AnswerverifiedShow Answer

What is readily liquefied, relatively inert, nontoxic, noncombustible, and volatile and has been used as a coolant in refrigerators and air conditioners but is harmful to the ozone layer in the stratosphere?

Correct AnswerverifiedE

Acid rain is less of a threat to lakes and streams in areas where the bedrock is limestone (CaCO3) . Which of the following is the equation for neutralization of acid by limestone?

Correct AnswerverifiedShow Answer

The presence of ozone in the upper atmosphere is important because

Correct AnswerverifiedShow Answer

Give two important reasons why there is so much more Na+ in the oceans than K+, despite their similar abundances in the Earth's crust.

Correct AnswerverifiedClays bind K+ more effectively ...View AnswerShow Answer

Which of the following areas of the atmosphere is closest to Earth's surface?

Correct AnswerverifiedShow Answer

Which region of the atmosphere contains the ozone layer?

Correct AnswerverifiedShow Answer

Suppose that ammonia, applied to a field as a fertilizer, is washed into a farm pond containing 3.0 × 106 L of water. If the pH of this pond is found to be 9.81, what volume of liquid ammonia found its way into the pond? [Given: Kb(NH3) = 1.8 × 10-5; the density of liquid ammonia is 0.771 g/cm3]

Correct AnswerverifiedShow Answer

Which is not a characteristic property of a chlorofluorocarbon?

Correct AnswerverifiedShow Answer

Which statement about ozone and the ozone layer is true?

Correct AnswerverifiedShow Answer

The Aurora Borealis is due to

Correct AnswerverifiedShow Answer

Ozone (O3) and oxygen gas (O2) are examples of

Correct AnswerverifiedShow Answer

What happens to nitrogen dioxide in sunlight? Write the reaction for this process.

Correct AnswerverifiedIt decomposes. NO2(g) + hν → NO(g) + O(g)

What are the primary pollutants from automobile exhaust?

Correct AnswerverifiedNO, CO, an...View AnswerShow Answer

What are the common indoor pollutants?

Correct AnswerverifiedCO, CO2, an...View AnswerShow Answer

What is the name given to the incoming streams of solar protons and electrons oriented by Earth's magnetic field occurring in the Northern Hemisphere?

Correct AnswerverifiedShow Answer

The air at sea level is ~80% oxygen and ~20% nitrogen.

Correct AnswerverifiedFalse

Currently the CO2 content of Earth's atmosphere is approximately

Correct AnswerverifiedShow Answer

The normal process occurring on Earth that warms its surface and the lower atmosphere is called

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
E

Acid rain is less of a threat to lakes and streams in areas where the bedrock is limestone (CaCO₃) . Which of the following is the equation for neutralization of acid by limestone?

Correct Answer
verified

Correct Answer
verified

Give two important reasons why there is so much more Na⁺ in the oceans than K⁺, despite their similar abundances in the Earth's crust.

Correct Answer
verified
Clays bind K⁺ more effectively ...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Ozone (O₃) and oxygen gas (O₂) are examples of

Correct Answer
verified

Correct Answer
verified
It decomposes. NO₂(g) + hν → NO(g) + O(g)

Correct Answer
verified
NO, CO, an...
View Answer

Correct Answer
verified
CO, CO₂, an...
View Answer

Correct Answer
verified

Correct Answer
verified
False

Currently the CO₂ content of Earth's atmosphere is approximately

Correct Answer
verified

Correct Answer
verified