Question 1

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) A) and C)
G) A) and B)

Question 2

The CO2 content of Earth's atmosphere is approximately

Accepted Answer

A)  4%
B)  0.4%
C)  0.04% (400 ppm) 
D)  40 ppm
E)  4 ppmF) A) and B)
G) A) and C)

Question 3

Write out the reaction that shows how the acidic oxide N2O5 combines with water to generate nitric acid leading to acid rain.

Accepted Answer

N₂O₅(g)+ H₂O(...

Question 4

Which of the following is a promising candidate as an alternative to using chlorofluorocarbons as a coolant?

Accepted Answer

A)  CCl2F2
B)  CClF3
C)  CFCl3
D)  CH2FCF3
E)  C3H8F) B) and E)
G) A) and B)

Question 5

An increase in the amount of particulate matter (dust and smoke) in the atmosphere may result in cooler world temperatures because

Accepted Answer

A)  more sunlight is absorbed by Earth.
B)  more infrared radiation is emitted into space.
C)  the dust reflects solar radiation.
D)  dust reacts with ozone in an exothermic reaction.E) C) and D)
F) A) and D)

Question 6

The ozone layer in the atmosphere protects animals and plants from

Accepted Answer

A)  infrared radiation.
B)  acid rain.
C)  visible sunlight.
D)  radioactivity.
E)  ultraviolet rays.F) B) and D)
G) A) and B)

Question 7

Which of the following cannot be plausibly linked to the destruction of the ozone layer?

Accepted Answer

A)  Damage to crops.
B)  Increased number of skin cancer cases.
C)  Genetic mutations.
D)  Increasing global CO2 concentrations.E) B) and D)
F) All of the above

Question 8

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) C) and D)
G) A) and D)

Question 9

Acid rain is precipitation having a pH that is

Accepted Answer

A)  above 7.0
B)  below 5.5
C)  below 7.0
D)  above 8.6
E)  above 10.0F) A) and D)
G) B) and D)

Question 10

Write the chemical equation for the reaction of acid rain with limestone rock.

Accepted Answer

CaCO₃ + 2H⁺ ...

Question 11

The mechanism for the decomposition of ozone in the presence of a reactive chlorine atom is shown below.Which species functions as a catalyst? 
O3 + (UV light)  →\rarr→ O +  →\rarr→ 2
 Cl + O3  →\rarr→  ClO + O2
 ClO + O  →\rarr→  Cl + O2

Accepted Answer

A)  O
B)  Cl
C)  ClO
D)  CFCl3
E)  O2 F) A) and E)
G) A) and C)

Question 12

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

Accepted Answer

CO, NO, un...

Question 13

Name four "greenhouse gases" besides carbon dioxide.

Accepted Answer

methane, nitrous oxi...

Question 14

Heat is radiated from Earth to space predominately in the form of:

Accepted Answer

A)  infrared radiation.
B)  radioactivity.
C)  visible light.
D)  solar flares.
E)  UV radiation.F) B) and E)
G) A) and B)

Question 15

The mechanism for the decomposition of ozone in the presence of a reactive chlorine atom is shown below Which of the following species is an intermediate? 
O3 + (UV light)  →\rarr→  O +  →\rarr→ 2
 Cl + O3  →\rarr→ ClO + O2
 ClO + O  →\rarr→  Cl + O2

Accepted Answer

A)  Cl
B)  ClO
C)  O3
D)  O2
E)  UV light F) C) and D)
G) A) and B)

Question 16

Name four regions of the atmosphere in order of increasing altitude.

Accepted Answer

troposphere, stratos...

Question 17

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

Accepted Answer

A)  CaCO3 + 2OH-  →\rarr→  Ca(OH) 2 + CO2
B)  CaCO3 + 2H3O+  →\rarr→  Ca2+ + CO2 + 3H2O
C)  CaCO3 + H2O  →\rarr→  Ca + H2CO3
D)  CaCO3 + OH-  →\rarr→  Ca2+ + CO2 + H2O
E)  CaCO3 + 2H3O+  →\rarr→  Ca2+ + CO2 + 2H2O F) B) and C)
G) A) and B)

Question 18

Which one of the following can function as a greenhouse gas?

Accepted Answer

A)  Ar
B)  H2
C)  N2
D)  O2
E)  NOF) None of the above
G) B) and D)

Question 19

The average person breathes about 20 m3 of air a day.What mass of particulates would a person breathe in a day if the particulate level were 400 micrograms per cubic meter?

Accepted Answer

Question 20

Which one of the following reactions is an example of nitrogen fixation?

Accepted Answer

A)  N2O5(g)  →\rarr→  NO3(g) + NO2(g) 
B)  N2(g) + O2(g)  →\rarr→  2NO(g) 
C)  3NO2(g) + H2O(l)  →\rarr→ 2HNO3(aq) + NO(g) 
D)  2NO(g) + O2(g)  →\rarr→  2NO2(g) 
E)  2NH3(g)  →\rarr→ 3H2(aq) + N2(g)  F) None of the above
G) A) and D)

Exam 20: Chemistry in the Atmosphere

The average person breathes about 20 m3 of air a day.What mass of particulates would a person breathe in a day if the particulate level were 400 micrograms per cubic meter?

Correct AnswerverifiedShow Answer

Acid rain is precipitation having a pH that is

Correct AnswerverifiedShow Answer

Which of the following is a promising candidate as an alternative to using chlorofluorocarbons as a coolant?

Correct AnswerverifiedShow Answer

The ozone layer in the atmosphere protects animals and plants from

Correct AnswerverifiedShow Answer

The mechanism for the decomposition of ozone in the presence of a reactive chlorine atom is shown below Which of the following species is an intermediate? O3 + (UV light) →\rarr→ O + →\rarr→ 2 Cl + O3 →\rarr→ ClO + O2 ClO + O →\rarr→ Cl + O2

Correct AnswerverifiedShow Answer

Which one of the following reactions is an example of nitrogen fixation?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

An increase in the amount of particulate matter (dust and smoke) in the atmosphere may result in cooler world temperatures because

Correct AnswerverifiedShow Answer

Which statement about ozone and the ozone layer is true?

Correct AnswerverifiedShow Answer

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

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

Which of the following cannot be plausibly linked to the destruction of the ozone layer?

Correct AnswerverifiedShow Answer

Write the chemical equation for the reaction of acid rain with limestone rock.

Correct AnswerverifiedCaCO3 + 2H+ ...View AnswerShow Answer

Name four "greenhouse gases" besides carbon dioxide.

Correct Answerverifiedmethane, nitrous oxi...View AnswerShow Answer

Heat is radiated from Earth to space predominately in the form of:

Correct AnswerverifiedShow Answer

Which one of the following can function as a greenhouse gas?

Correct AnswerverifiedShow Answer

Name four regions of the atmosphere in order of increasing altitude.

Correct Answerverifiedtroposphere, stratos...View AnswerShow Answer

The mechanism for the decomposition of ozone in the presence of a reactive chlorine atom is shown below.Which species functions as a catalyst? O3 + (UV light) →\rarr→ O + →\rarr→ 2 Cl + O3 →\rarr→ ClO + O2 ClO + O →\rarr→ Cl + O2

Correct AnswerverifiedShow Answer

Write out the reaction that shows how the acidic oxide N2O5 combines with water to generate nitric acid leading to acid rain.

Correct AnswerverifiedN2O5(g)+ H2O(...View AnswerShow Answer

The CO2 content of Earth's atmosphere is approximately

Correct AnswerverifiedShow Answer

The average person breathes about 20 m³ of air a day.What mass of particulates would a person breathe in a day if the particulate level were 400 micrograms per cubic meter?

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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The mechanism for the decomposition of ozone in the presence of a reactive chlorine atom is shown below Which of the following species is an intermediate? O₃ + (UV light) $\rarr$ O + $\rarr$ ₂ Cl + O₃ $\rarr$ ClO + O₂ ClO + O $\rarr$ Cl + O₂

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

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
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CO, NO, un...
View Answer

Correct Answer
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Correct Answer
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CaCO₃ + 2H⁺ ...
View Answer

Correct Answer
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methane, nitrous oxi...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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troposphere, stratos...
View Answer

The mechanism for the decomposition of ozone in the presence of a reactive chlorine atom is shown below.Which species functions as a catalyst? O₃ + (UV light) $\rarr$ O + $\rarr$ ₂ Cl + O₃ $\rarr$ ClO + O₂ ClO + O $\rarr$ Cl + O₂

Correct Answer
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Write out the reaction that shows how the acidic oxide N₂O₅ combines with water to generate nitric acid leading to acid rain.

Correct Answer
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N₂O₅(g)+ H₂O(...
View Answer

The CO₂ content of Earth's atmosphere is approximately

Correct Answer
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