Question 1

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) C) and D)
G) B) and D)

Question 2

What mass of solid CaO is needed to remove the sulfur dioxide from 1.0 × 106 m3 of air having an SO2 concentration of 1.5 × 10-9 M? Assume that the reaction leading to removal of the sulfur dioxide is CaO(s) + SO2(g)  →\rarr→ CaCO3(s) .

Accepted Answer

A)  56 g
B)  96 g
C)  37 g
D)  84 g
E)  43 g F) B) and D)
G) All of the above

Question 3

Which of the following would NOT help reduce the amount of CO2 introduced into the atmosphere?

Accepted Answer

A)  Improving energy efficiency in automobiles
B)  Use of nuclear energy
C)  Recover methane gas generated at landfills
D)  Preservation of the Amazon jungle
E)  Converting forests to farmland for crops and grassland for cattleF) All of the above
G) None of the above

Question 4

The most prevalent noble gas in our atmosphere is

Accepted Answer

A)  helium.
B)  neon.
C)  argon.
D)  krypton.
E)  xenon.F) A) and B)
G) D) and E)

Question 5

Determine 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) D) and E)
G) B) and D)

Question 6

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

Accepted Answer

It decompo...

Question 7

Peroxyacetyl nitrate, called PAN for short, is a powerful lachrymator.A lachrymator is

Accepted Answer

A)  a greenhouse gas.
B)  a product of incomplete combustion.
C)  an agent that induces drowsiness.
D)  a cancer causing agent.
E)  a tear producer.F) B) and E)
G) A) and C)

Question 8

Write out the steps in the reaction scheme for nitrogen fixation by lightening.

Accepted Answer

N₂(g)+ O₂(g)

2NO(g)
2...

Question 9

List the following greenhouse gases in order of their overall magnitude of contribution to global warming: N2O, CFCs, CO2, CH4

Accepted Answer

A)  N2O 2 4
B)  N2O 4 2
C)  CO2 2O 4
D)  CH4 2O 2
E)  N2O 4 2F) C) and D)
G) B) and E)

Question 10

The compound CFCl3 is used as a/an

Accepted Answer

A)  enzyme
B)  anesthetic
C)  gaseous fuel
D)  coolant
E)  CFC replacementF) A) and C)
G) A) and D)

Question 11

One of the steps in the fixation of nitrogen by lightening is given below. 2NO2(g) + H2O(l)  →\rarr→ HNO2(aq) + HNO3(aq) 
In this reaction, is the element nitrogen oxidized or reduced?

Accepted Answer

A)  Nitrogen is oxidized in this reaction.
B)  Nitrogen is reduced in this reaction.
C)  Nitrogen is oxidized and reduced in this reaction.
D)  Nitrogen is neither oxidized nor reduced in this reaction. E) B) and C)
F) All of the above

Question 12

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 C) D

Question 13

Which region of the atmosphere contains the ozone layer?

Accepted Answer

A)  thermosphere
B)  mesosphere
C)  stratosphere
D)  troposphereE) A) and C)
F) All of the above

Question 14

Select all of the following that are capable of destroying stratospheric ozone through chemical meAns :
I.CF2Cl2
II.NO
III.CO2

Accepted Answer

A)  I, II, and III    
B)  I and III    
C)  II and III    
D)  I and II    
E)  I onlyF) All of the above
G) C) and E) D

Question 15

Write out the steps in the mechanism by which ozone is formed in the stratosphere.

Accepted Answer

O₂(g)+ h

2O...

Question 16

An unusual atmospheric reaction leading to ozone destruction is CF3O + O3  →\rarr→ CF3O2 + O2, the analysis of which has yielded an Arrhenius frequency factor (A) and activation energy of 2.0 × 10-12 cm3 molecule-1 s-1 and 11.6 kJ/mol, respectively.Calculate the rate constant for this reaction at an altitude of 35 km, where the temperature is -34°C.

Accepted Answer

A)  2.0 × 10-12 M-1 s-1
B)  1.2 × 109 M-1 s-1
C)  3.5 × 106 M-1 s-1
D)  7.9 × 10-15 M-1 s-1
E)  6.8 × 108 M-1 s-1 F) D) and E)
G) A) and D)

Question 17

A possible reaction leading to removal of ClO from the atmosphere is 2ClO  →\rarr→ 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-1 F) A) and B)
G) A) and E) E

Question 18

Write out the steps in the mechanism of ozone destruction by nitric oxide (NO).

Accepted Answer

NO(g)+ O₃(g...

Question 19

The rate constant of the reaction Cl + CHCl3 →\rarr→ HCl + CCl3 is 5.8 × 107 M-1s-1 at 25°C and has an activation energy of 11.0 kJ/mol.Calculate the rate constant for this reaction in the lower stratosphere where the temperature is -57°C.

Accepted Answer

A)  1.1 × 107 M-1 s-1
B)  4.2 × 107 M-1 s-1
C)  4.9 × 109 M-1 s-1
D)  9.5 × 106 M-1 s-1
E)  2.7 × 109 M-1 s-1 F) B) and C)
G) C) and D)

Question 20

Determine which of the following pollutants are of capable of forming acid rain when combined with water. I.SO2
 II.SO3
 III.CaCO3
 IV.CaO

Accepted Answer

A)  I and II
B)  III and IV
C)  I, II, III, and IV
D)  II and III
E)  I, II and IVF) A) and D)
G) B) and D)

Exam 20: Chemistry in the Atmosphere

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

Correct Answer
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What mass of solid CaO is needed to remove the sulfur dioxide from 1.0 × 10⁶ m³ of air having an SO₂ concentration of 1.5 × 10^-9 M? Assume that the reaction leading to removal of the sulfur dioxide is CaO(s) + SO₂(g) $\rarr$ CaCO₃(s) .

Correct Answer
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Which of the following would NOT help reduce the amount of CO₂ introduced into the atmosphere?

Correct Answer
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The most prevalent noble gas in our atmosphere is

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

Correct Answer
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It decompo...
View Answer

Peroxyacetyl nitrate, called PAN for short, is a powerful lachrymator.A lachrymator is

Correct Answer
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Write out the steps in the reaction scheme for nitrogen fixation by lightening.

Correct Answer
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N₂(g)+ O₂(g) 2NO(g)
2...
View Answer

List the following greenhouse gases in order of their overall magnitude of contribution to global warming: N₂O, CFCs, CO₂, CH₄

Correct Answer
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The compound CFCl₃ is used as a/an

Correct Answer
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One of the steps in the fixation of nitrogen by lightening is given below. 2NO₂(g) + H₂O(l) $\rarr$ HNO₂(aq) + HNO₃(aq) In this reaction, is the element nitrogen oxidized or reduced?

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

Correct Answer
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D

Which region of the atmosphere contains the ozone layer?

Correct Answer
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Select all of the following that are capable of destroying stratospheric ozone through chemical meAns : I.CF₂Cl₂ II.NO III.CO₂

Correct Answer
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D

Write out the steps in the mechanism by which ozone is formed in the stratosphere.

Correct Answer
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O₂(g)+ h 2O...
View Answer

Correct Answer
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Correct Answer
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E

Write out the steps in the mechanism of ozone destruction by nitric oxide (NO).

Correct Answer
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NO(g)+ O₃(g...
View Answer

The rate constant of the reaction Cl + CHCl₃ $\rarr$ HCl + CCl₃ is 5.8 × 10⁷ M^-1s^-1 at 25°C and has an activation energy of 11.0 kJ/mol.Calculate the rate constant for this reaction in the lower stratosphere where the temperature is -57°C.

Correct Answer
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Determine which of the following pollutants are of capable of forming acid rain when combined with water. I.SO₂ II.SO₃ III.CaCO₃ IV.CaO

Correct Answer
verified

Exam 20: Chemistry in the Atmosphere

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

Correct AnswerverifiedShow Answer

What mass of solid CaO is needed to remove the sulfur dioxide from 1.0 × 106 m3 of air having an SO2 concentration of 1.5 × 10-9 M? Assume that the reaction leading to removal of the sulfur dioxide is CaO(s) + SO2(g) →\rarr→ CaCO3(s) .

Correct AnswerverifiedShow Answer

Which of the following would NOT help reduce the amount of CO2 introduced into the atmosphere?

Correct AnswerverifiedShow Answer

The most prevalent noble gas in our atmosphere is

Correct AnswerverifiedShow Answer

Determine 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

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

Correct AnswerverifiedIt decompo...View AnswerShow Answer

Peroxyacetyl nitrate, called PAN for short, is a powerful lachrymator.A lachrymator is

Correct AnswerverifiedShow Answer

Write out the steps in the reaction scheme for nitrogen fixation by lightening.

Correct AnswerverifiedN2(g)+ O2(g) 2NO(g)2...View AnswerShow Answer

List the following greenhouse gases in order of their overall magnitude of contribution to global warming: N2O, CFCs, CO2, CH4

Correct AnswerverifiedShow Answer

The compound CFCl3 is used as a/an

Correct AnswerverifiedShow Answer

One of the steps in the fixation of nitrogen by lightening is given below. 2NO2(g) + H2O(l) →\rarr→ HNO2(aq) + HNO3(aq) In this reaction, is the element nitrogen oxidized or reduced?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedD

Which region of the atmosphere contains the ozone layer?

Correct AnswerverifiedShow Answer

Select all of the following that are capable of destroying stratospheric ozone through chemical meAns : I.CF2Cl2 II.NO III.CO2

Correct AnswerverifiedD

Write out the steps in the mechanism by which ozone is formed in the stratosphere.

Correct AnswerverifiedO2(g)+ h 2O...View AnswerShow Answer

Correct AnswerverifiedShow Answer

Correct AnswerverifiedE

Write out the steps in the mechanism of ozone destruction by nitric oxide (NO).

Correct AnswerverifiedNO(g)+ O3(g...View AnswerShow Answer

The rate constant of the reaction Cl + CHCl3 →\rarr→ HCl + CCl3 is 5.8 × 107 M-1s-1 at 25°C and has an activation energy of 11.0 kJ/mol.Calculate the rate constant for this reaction in the lower stratosphere where the temperature is -57°C.

Correct AnswerverifiedShow Answer

Determine which of the following pollutants are of capable of forming acid rain when combined with water. I.SO2 II.SO3 III.CaCO3 IV.CaO

Correct AnswerverifiedShow Answer

Correct Answer
verified

What mass of solid CaO is needed to remove the sulfur dioxide from 1.0 × 10⁶ m³ of air having an SO₂ concentration of 1.5 × 10^-9 M? Assume that the reaction leading to removal of the sulfur dioxide is CaO(s) + SO₂(g) $\rarr$ CaCO₃(s) .

Correct Answer
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Which of the following would NOT help reduce the amount of CO₂ introduced into the atmosphere?

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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It decompo...
View Answer

Correct Answer
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Correct Answer
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N₂(g)+ O₂(g) 2NO(g)
2...
View Answer

List the following greenhouse gases in order of their overall magnitude of contribution to global warming: N₂O, CFCs, CO₂, CH₄

Correct Answer
verified

The compound CFCl₃ is used as a/an

Correct Answer
verified

One of the steps in the fixation of nitrogen by lightening is given below. 2NO₂(g) + H₂O(l) $\rarr$ HNO₂(aq) + HNO₃(aq) In this reaction, is the element nitrogen oxidized or reduced?

Correct Answer
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Correct Answer
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D

Correct Answer
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Select all of the following that are capable of destroying stratospheric ozone through chemical meAns : I.CF₂Cl₂ II.NO III.CO₂

Correct Answer
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D

Correct Answer
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O₂(g)+ h 2O...
View Answer

Correct Answer
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Correct Answer
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E

Correct Answer
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NO(g)+ O₃(g...
View Answer

The rate constant of the reaction Cl + CHCl₃ $\rarr$ HCl + CCl₃ is 5.8 × 10⁷ M^-1s^-1 at 25°C and has an activation energy of 11.0 kJ/mol.Calculate the rate constant for this reaction in the lower stratosphere where the temperature is -57°C.

Correct Answer
verified

Determine which of the following pollutants are of capable of forming acid rain when combined with water. I.SO₂ II.SO₃ III.CaCO₃ IV.CaO

Correct Answer
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