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. 
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.

Question 2

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. 
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.

Question 3

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 
A)  56 g 
B)  96 g 
C)  37 g 
D)  84 g 
E)  43 g

Question 4

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

Question 5

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

Question 6

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. 
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.

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. 
A)  Damage to crops. 
B)  Increased number of skin cancer cases. 
C)  Genetic mutations. 
D)  Increasing global CO2 concentrations.

Question 8

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 9

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

Question 10

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 above 
A)  troposphere, mesosphere, thermosphere, stratosphere 
B)  troposphere, mesosphere stratosphere, thermosphere 
C)  stratosphere, mesosphere, thermosphere, troposphere 
D)  troposphere, stratosphere, mesosphere, thermosphere 
E)  None of the above

Question 11

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)  Chlorofluorocarbons 
A)  Coal-fired power plants 
B)  Landfills 
C)  Automobile exhaust 
D)  Nuclear power plants 
E)  Chlorofluorocarbons

Question 12

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 13

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

Question 14

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

Question 15

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

Question 16

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. 
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.

Question 17

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

Question 18

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

Question 19

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)  Asia 
A)  North America 
B)  South America 
C)  Australia 
D)  Antarctica 
E)  Asia

Question 20

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. 
A)  4%. 
B)  0.4%. 
C)  0.04% (400 ppm). 
D)  40 ppm. 
E)  4 ppm.

Exam 20: Chemistry in the Atmosphere

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

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

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).

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

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

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

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

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

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

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

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

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)

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.

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)

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

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

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

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

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

The CO2 content of Earth's atmosphere is approximately

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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).

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

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

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)

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.

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)

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

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

The CO₂ content of Earth's atmosphere is approximately