Question 1

The regions of the earth's atmosphere listed from lowest altitude to highest altitude are:

Accepted Answer

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

Question 2

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 E)
G) A) and C)

Question 3

The following balanced equation shows what happens to nitrogen dioxide in sunlight.NO2(g) + hn $\rarr$ NO(g) + O(g)

Accepted Answer

A) True 
 B)False

Question 4

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

Accepted Answer

A)   troposphere, mesosphere, thermosphere, stratosphere
B)   troposphere, mesosphere stratosphere, thermosphere
C)   stratosphere, mesosphere, thermosphere, troposphere
D)   troposphere, stratosphere, mesosphere, thermosphere
E)   None of the aboveF) C) and E)
G) B) and C)

Question 5

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 C)
G) D) and E)

Question 6

Which of the following sources does NOT contribute significantly to the greenhouse effect

Accepted Answer

A)   Coal-fired power plants
B)   Landfills
C)   Automobile exhaust
D)   Nuclear power plants
E)   ChlorofluorocarbonsF) A) and E)
G) A) and D)

Question 7

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 ppm.F) A) and B)
G) A) and C)

Question 8

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 C)
G) A) and B)

Question 9

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

Question 10

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) A) and B)

Question 11

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) A) and B)

Question 12

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

Question 13

Which one of the following is not considered a "greenhouse gas "

Accepted Answer

A)   Carbon dioxide
B)   Water vapor
C)   Nitrous oxide
D)   Methane
E)   All of the above are considered greenhouse gasesF) A) and B)
G) C) and E)

Question 14

Excluding water vapor, list the four most prevalent gases in our atmosphere from most abundant to least abundant.

Accepted Answer

A)   N2 > O2 > CO2 > Ar
B)   N2 > CO2 > O2 > Ar
C)   N2 > O2 > Ar > CO2
D)   CO2 > O2 > Ar > N2
E)   None of the aboveF) None of the above
G) C) and D)

Question 15

Which one of the following would slow the rate of increase of atmospheric CO2

Accepted Answer

A)   Building and operating more coal-fired power plants.
B)   More use of catalytic converters in cars to produce complete combustion.
C)   Use of hydrogen fuel produced using solar or nuclear energy.
D)   Conversion of nuclear power plants to methane-burning power plants.
E)   Clearing and burning the tropical rain forests.F) B) and E)
G) B) and D)

Question 16

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) C) and D)
F) B) and C)

Question 17

The reaction that shows how the acidic oxide N2O5 combines with water to generate nitric acid leading to acid rain is shown in the balanced equation here.N2O5(g) + H2O(l) $\rarr$ 2 HNO2(aq)

Accepted Answer

A) True 
 B)False

Question 18

The rate constant of the reaction O + O3  →\rarr→ 2O2 is 7.0 *105 M-1 s-1 at -40 ∘\circ∘ C and 4.8 * 106 M-1s-1 at 25 ∘\circ∘ C. Calculate the activation energy of this reaction.

Accepted Answer

A)   2.0 kJ/mol
B)   17 kJ/mol
C)   1100 kJ/mol
D)   25. kJ/mol
E)   0.13 kJ/mol F) C) and D)
G) B) and C)

Question 19

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) B) and E)
G) A) and B)

Question 20

The steps in the mechanism of ozone destruction by nitric oxide (NO) are shown here:
NO(g) + O3(g) $\rarr$ NO2(g) + O2(g)
NO2(g) + O(g) $\rarr$ NO(g) + O2(g)

Accepted Answer

A) True 
 B)False

Exam 20: Chemistry in the Atmosphere

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

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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) .

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

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Excluding water vapor, list the four most prevalent gases in our atmosphere from most abundant to least abundant.

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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

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The steps in the mechanism of ozone destruction by nitric oxide (NO) are shown here: NO(g) + O3(g) →\rarr→ NO2(g) + O2(g) NO2(g) + O(g) →\rarr→ NO(g) + O2(g)

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The regions of the earth's atmosphere listed from lowest altitude to highest altitude are:

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Which of the following sources does NOT contribute significantly to the greenhouse effect

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

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

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

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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

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

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The reaction that shows how the acidic oxide N2O5 combines with water to generate nitric acid leading to acid rain is shown in the balanced equation here.N2O5(g) + H2O(l) →\rarr→ 2 HNO2(aq)

Correct AnswerverifiedShow Answer

The rate constant of the reaction O + O3 →\rarr→ 2O2 is 7.0 *105 M-1 s-1 at -40 ∘\circ∘ C and 4.8 * 106 M-1s-1 at 25 ∘\circ∘ C. Calculate the activation energy of this reaction.

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

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The following balanced equation shows what happens to nitrogen dioxide in sunlight.NO2(g) + hn →\rarr→ NO(g) + O(g)

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Which one of the following would slow the rate of increase of atmospheric CO2

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The CO2 content of Earth's atmosphere is approximately

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Which one of the following is not considered a "greenhouse gas "

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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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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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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

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The steps in the mechanism of ozone destruction by nitric oxide (NO) are shown here: NO(g) + O₃(g) $\rarr$ NO₂(g) + O₂(g) NO₂(g) + O(g) $\rarr$ NO(g) + O₂(g)

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The reaction that shows how the acidic oxide N₂O₅ combines with water to generate nitric acid leading to acid rain is shown in the balanced equation here.N₂O₅(g) + H₂O(l) $\rarr$ 2 HNO₂(aq)

Correct Answer
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The rate constant of the reaction O + O₃ $\rarr$ 2O₂ is 7.0 10⁵ M^-1 s^-1 at -40^$\circ$C and 4.8 10⁶ M^-1s^-1 at 25^$\circ$C. Calculate the activation energy of this reaction.

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The following balanced equation shows what happens to nitrogen dioxide in sunlight.NO₂(g) + hn $\rarr$ NO(g) + O(g)

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Which one of the following would slow the rate of increase of atmospheric CO₂

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The CO₂ content of Earth's atmosphere is approximately

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