Question 1

What is the layer of the atmosphere called which is the uppermost layer of the atmosphere and where the increase in temperature in this region is the result of the bombardment of molecular oxygen and nitrogen and atomic species by energetic particles, such as electrons and protons, from the sun?

Accepted Answer

A)   outer atmosphere
B)   mesosphere
C)   thermosphere
D)   troposphere
E)   stratosphereF) C) and E)
G) A) and B)

Question 2

A possible reaction leading to removal of ClO from the atmosphere is 2ClO → Cl2 + O2. Studies of this reaction have yielded an Arrhenius frequency factor, A, and an activation energy of 1.0 × 10-12 cm3 molecule-1 s-1 and 13.2 kJ/mol, respectively. Calculate the rate constant for the disappearance of ClO at -30°C.

Accepted Answer

A)   1.5 × 10-15 M-1 s-1
B)   8.7 × 105 M-1 s-1
C)   2.9 × 10-15 M-1 s-1
D)   9.9 × 10-13 M-1 s-1
E)   1.7 × 106 M-1 s-1F) A) and B)
G) All of the above

Question 3

In order for a gas to be a "greenhouse gas" it must

Accepted Answer

A)   transmit visible light and absorb infrared radiation.
B)   be radioactive.
C)   transmit infrared light and absorb visible light.
D)   be combustible.
E)   absorb both visible light and infrared radiation.F) A) and D)
G) D) and E)

Question 4

The primary source of photochemical smog is

Accepted Answer

A)   the presence of greenhouse gases in the atmosphere.
B)   the action of ultraviolet light on ozone.
C)   water evaporating from farm fields.
D)   unfiltered emissions from coal-burning power plants.
E)   reactions of automobile exhaust in the presence of sunlight.F) B) and C)
G) A) and E)

Question 5

Ozone is destroyed naturally by the absorption of short-wavelength light.

Accepted Answer

A) True 
 B)False

Question 6

List three primary pollutants removed from automobile exhaust by catalytic converters.

Accepted Answer

CO, NO, un...

Question 7

Substitutes for CFCs

Accepted Answer

A)   contain C-H bonds that make these compounds susceptible to destruction.
B)   contain embedded O3 molecules to replace those being destroyed.
C)   contain chlorine atoms that can react with oxygen to lead to formation of ozone.
D)   None of these choices.E) None of the above
F) C) and D)

Question 8

About 80% of the total mass of air is in the

Accepted Answer

A)   ionosphere.
B)   stratosphere.
C)   mesosphere.
D)   thermosphere.
E)   troposphere.F) B) and E)
G) A) and B)

Question 9

What is the noxious cloud of smoke and fog caused by SO2 which is formed by the reactions of automobile exhaust and sunlight?

Accepted Answer

A)   primary pollutants
B)   secondary pollutants
C)   automotive discharge
D)   acid rain
E)   photochemical smogF) A) and E)
G) A) and D)

Question 10

What are the main mineral sources of phosphorus?

Accepted Answer

A)   phosphides
B)   phosphites
C)   phosphors
D)   phosphates
E)   elemental phosphorusF) A) and C)
G) A) and B)

Question 11

________ is the layer above the stratosphere where the concentration of ozone and other gases is low and where the temperature decreases with increasing altitude.

Accepted Answer

The answer of ________ is the layer above the stratosphere...

Question 12

Which choice lists two effects expected from the depletion of the ozone layer? 1. asthma
2)  lung cancer
3)  skin cancer
4)  genetic mutations
5)  emphysema

Accepted Answer

A)   1 and 5
B)   2 and 3
C)   3 and 5
D)   3 and 4
E)   4 and 5F) C) and D)
G) B) and D)

Question 13

The main effect of the biosphere on the chemistry of the Earth's crust has been to

Accepted Answer

A)   create a reducing atmosphere.
B)   create an oxidizing atmosphere.
C)   increase the relative humidity.
D)   decrease the relative humidity.
E)   increase the level of atmospheric carbon dioxide.F) A) and B)
G) None of the above

Question 14

________ is the uppermost layer of the atmosphere.

Accepted Answer

Thermosphe...

Question 15

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

Accepted Answer

A)   southern auroras
B)   Aurora australis
C)   southern celesta ions
D)   Aurora borealis
E)   solar flaresF) C) and E)
G) A) and B)

Question 16

The first "hole" in the ozone layer was found over which continent?

Accepted Answer

A)   North America
B)   South America
C)   Australia
D)   Antarctica
E)   AsiaF) C) and D)
G) A) and D)

Question 17

________ is used as a subscript beside an atom to indicate the atom is in an electronically excited state.

Accepted Answer

The answer of ________ is used as a subscript beside...

Question 18

What colors do excited oxygen atoms emit?

Accepted Answer

The answer of What colors do excited oxygen atoms emit?...

Question 19

What was responsible for the "orange glow" observed by astronauts on the outside surface of their space shuttle as they were orbiting the Earth?

Accepted Answer

A)   O2 interacting with SO2 to form SO2* excited state molecules.
B)   An oxygen atom interacting with nitric oxide adsorbed on the shuttle's surface to form electronically excited nitrogen dioxide, NO2*.
C)   N2 interacting with CO2 to form CO2* excited state molecules.
D)   CO and CO2 interacting to form CO3* excited state molecules.
E)   Star dust from the stratosphere combining with upper atmospheric O2 gases.F) A) and C)
G) A) and D)

Question 20

Mars has an atmosphere made mostly of oxygen.

Accepted Answer

A) True 
 B)False

Exam 21: Environmental Chemistry

Ozone is destroyed naturally by the absorption of short-wavelength light.

Correct Answer
verified

What is the layer of the atmosphere called which is the uppermost layer of the atmosphere and where the increase in temperature in this region is the result of the bombardment of molecular oxygen and nitrogen and atomic species by energetic particles, such as electrons and protons, from the sun?

Correct Answer
verified

List three primary pollutants removed from automobile exhaust by catalytic converters.

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

About 80% of the total mass of air is in the

Correct Answer
verified

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

Correct Answer
verified

What are the main mineral sources of phosphorus?

Correct Answer
verified

________ is used as a subscript beside an atom to indicate the atom is in an electronically excited state.

Correct Answer
verified

What was responsible for the "orange glow" observed by astronauts on the outside surface of their space shuttle as they were orbiting the Earth?

Correct Answer
verified

________ is the uppermost layer of the atmosphere.

Correct Answer
verified
Thermosphe...
View Answer

________ is the layer above the stratosphere where the concentration of ozone and other gases is low and where the temperature decreases with increasing altitude.

Correct Answer
verified

Substitutes for CFCs

Correct Answer
verified

Correct Answer
verified

The primary source of photochemical smog is

Correct Answer
verified

Which choice lists two effects expected from the depletion of the ozone layer? 1. asthma 2) lung cancer 3) skin cancer 4) genetic mutations 5) emphysema

Correct Answer
verified

Mars has an atmosphere made mostly of oxygen.

Correct Answer
verified

What is the noxious cloud of smoke and fog caused by SO₂ which is formed by the reactions of automobile exhaust and sunlight?

Correct Answer
verified

The first "hole" in the ozone layer was found over which continent?

Correct Answer
verified

What colors do excited oxygen atoms emit?

Correct Answer
verified

In order for a gas to be a "greenhouse gas" it must

Correct Answer
verified

The main effect of the biosphere on the chemistry of the Earth's crust has been to

Correct Answer
verified

Exam 21: Environmental Chemistry

Ozone is destroyed naturally by the absorption of short-wavelength light.

Correct AnswerverifiedShow Answer

What is the layer of the atmosphere called which is the uppermost layer of the atmosphere and where the increase in temperature in this region is the result of the bombardment of molecular oxygen and nitrogen and atomic species by energetic particles, such as electrons and protons, from the sun?

Correct AnswerverifiedShow Answer

List three primary pollutants removed from automobile exhaust by catalytic converters.

Correct AnswerverifiedCO, NO, un...View AnswerShow Answer

About 80% of the total mass of air is in the

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What are the main mineral sources of phosphorus?

Correct AnswerverifiedShow Answer

________ is used as a subscript beside an atom to indicate the atom is in an electronically excited state.

Correct AnswerverifiedShow Answer

What was responsible for the "orange glow" observed by astronauts on the outside surface of their space shuttle as they were orbiting the Earth?

Correct AnswerverifiedShow Answer

________ is the uppermost layer of the atmosphere.

Correct AnswerverifiedThermosphe...View AnswerShow Answer

________ is the layer above the stratosphere where the concentration of ozone and other gases is low and where the temperature decreases with increasing altitude.

Correct AnswerverifiedShow Answer

Substitutes for CFCs

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

The primary source of photochemical smog is

Correct AnswerverifiedShow Answer

Which choice lists two effects expected from the depletion of the ozone layer? 1. asthma 2) lung cancer 3) skin cancer 4) genetic mutations 5) emphysema

Correct AnswerverifiedShow Answer

Mars has an atmosphere made mostly of oxygen.

Correct AnswerverifiedShow Answer

What is the noxious cloud of smoke and fog caused by SO2 which is formed by the reactions of automobile exhaust and sunlight?

Correct AnswerverifiedShow Answer

The first "hole" in the ozone layer was found over which continent?

Correct AnswerverifiedShow Answer

What colors do excited oxygen atoms emit?

Correct AnswerverifiedShow Answer

In order for a gas to be a "greenhouse gas" it must

Correct AnswerverifiedShow Answer

The main effect of the biosphere on the chemistry of the Earth's crust has been to

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

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

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified
Thermosphe...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
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Correct Answer
verified

What is the noxious cloud of smoke and fog caused by SO₂ which is formed by the reactions of automobile exhaust and sunlight?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified