Question 1

In the mid-1980's which of the following was discovered?

Accepted Answer

A)  greenhouse gases
B)  Antarctic ozone hole
C)  radon gas
D)  CO poisoning in homes
E)  benzene in the Mississippi RiverF) C) and E)
G) D) and E)

Question 2

What colors do excited nitrogen molecules emit?

Accepted Answer

The answer of What colors do excited nitrogen molecules emit?...

Question 3

________________ is the layer above the troposphere that consists of nitrogen,oxygen,and ozone.

Accepted Answer

The answer of ________________ is the layer above the troposphere...

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

Which of the following reactions would be an example of nitrogen fixation?

Accepted Answer

A)  N2(g) + O2(g) → 2 NO(g) 
B)  2 NO(g) → N2(g) + O2(g) 
C)  2 NH3 (g) → N2(g) + 3 H2(g) 
D)  2 NO(g) + O2(g) → 2 NO2(g) E) B) and C)
F) A) and C)

Question 6

Ozone (O3) and oxygen gas (O2) are examples of

Accepted Answer

A)  isotopes.
B)  allotropes.
C)  polymorphs.
D)  alloys.
E)  amphoterism.F) A) and B)
G) B) and E)

Question 7

What are the main mineral sources of phosphorus?

Accepted Answer

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

Question 8

Write chemical equations that show what happens when acid rain reacts with limestone rock

Accepted Answer

CaCO₃ + 2H⁺ ...

Question 9

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 E)
G) A) and B)

Question 10

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 autralis
C)  southern celesta ions
D)  Aurora borelis
E)  solar flaresF) A) and B)
G) D) and E)

Question 11

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

Accepted Answer

It decompo...

Question 12

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) C) and E)
G) B) and E)

Question 13

_______________ is the biological or industrial conversion of molecular nitrogen into nitrogen compounds.

Accepted Answer

The answer of _______________ is the biological or industrial conversion...

Question 14

The bond energy of N2 is 160 kJ/mol.What is the wavelength of a photon that can cause the dissociation of a N2 molecule? (h = 6.63 × 10-34J s; c = 3.0 × 108m/s and Avogadro's number = 6.022 × 1023 molecules/mole)

Accepted Answer

A)  749 nm
B)  366 nm
C)  233 nm
D)  375 nm
E)  650 nmF) A) and D)
G) B) and D)

Question 15

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

Question 16

Which one of the following is not one of the five gaseous components in highest concentration in the atmosphere?

Accepted Answer

A)  CH4
B)  CO2
C)  N2
D)  Ar
E)  O2F) B) and D)
G) B) and C)

Question 17

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) B) and C)
F) None of the above

Question 18

________________ is the layer of the atmosphere closest to the surface of the Earth.

Accepted Answer

The answer of ________________ is the layer of the atmosphere...

Question 19

The rate constant of the reaction Cl + CHCl3 → HCl + CCl3 is 5.8 × 107 M-1 s-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-1F) B) and E)
G) C) and D)

Question 20

What describes the trapping of heat near Earth's surface by gases (CO2) in the atmosphere?

Accepted Answer

A)  restricted air flow
B)  flux
C)  heat trap
D)  greenhouse effect
E)  gasificationF) A) and D)
G) All of the above

Exam 21: Environmental Chemistry

Ozone (O₃) and oxygen gas (O₂) are examples of

Correct Answer
verified

What describes the trapping of heat near Earth's surface by gases (CO₂) in the atmosphere?

Correct Answer
verified

The bond energy of N₂ is 160 kJ/mol.What is the wavelength of a photon that can cause the dissociation of a N₂molecule? (h = 6.63 × 10^-34J s; c = 3.0 × 10⁸m/s and Avogadro's number = 6.022 × 10²³ molecules/mole)

Correct Answer
verified

________________ is the layer of the atmosphere closest to the surface of the Earth.

Correct Answer
verified

What colors do excited nitrogen molecules emit?

Correct Answer
verified

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

Correct Answer
verified
It decompo...
View Answer

What are the main mineral sources of phosphorus?

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

_______________ is the biological or industrial conversion of molecular nitrogen into nitrogen compounds.

Correct Answer
verified

In the mid-1980's which of the following was discovered?

Correct Answer
verified

The rate constant of the reaction Cl + CHCl₃ → HCl + CCl₃ is 5.8 × 10⁷ M^-1 s^-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

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

Correct Answer
verified

Correct Answer
verified

Write chemical equations that show what happens when acid rain reacts with limestone rock

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

Which statement about ozone and the ozone layer is true?

Correct Answer
verified

The primary source of photochemical smog is

Correct Answer
verified

Which one of the following is not one of the five gaseous components in highest concentration in the atmosphere?

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

________________ is the layer above the troposphere that consists of nitrogen,oxygen,and ozone.

Correct Answer
verified

Which of the following reactions would be an example of nitrogen fixation?

Correct Answer
verified

Exam 21: Environmental Chemistry

Ozone (O3) and oxygen gas (O2) are examples of

Correct AnswerverifiedShow Answer

What describes the trapping of heat near Earth's surface by gases (CO2) in the atmosphere?

Correct AnswerverifiedShow Answer

The bond energy of N2 is 160 kJ/mol.What is the wavelength of a photon that can cause the dissociation of a N2 molecule? (h = 6.63 × 10-34J s; c = 3.0 × 108m/s and Avogadro's number = 6.022 × 1023 molecules/mole)

Correct AnswerverifiedShow Answer

________________ is the layer of the atmosphere closest to the surface of the Earth.

Correct AnswerverifiedShow Answer

What colors do excited nitrogen molecules emit?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedIt decompo...View AnswerShow Answer

What are the main mineral sources of phosphorus?

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

_______________ is the biological or industrial conversion of molecular nitrogen into nitrogen compounds.

Correct AnswerverifiedShow Answer

In the mid-1980's which of the following was discovered?

Correct AnswerverifiedShow Answer

The rate constant of the reaction Cl + CHCl3 → HCl + CCl3 is 5.8 × 107 M-1 s-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

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

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Write chemical equations that show what happens when acid rain reacts with limestone rock

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

Which statement about ozone and the ozone layer is true?

Correct AnswerverifiedShow Answer

The primary source of photochemical smog is

Correct AnswerverifiedShow Answer

Which one of the following is not one of the five gaseous components in highest concentration in the atmosphere?

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

________________ is the layer above the troposphere that consists of nitrogen,oxygen,and ozone.

Correct AnswerverifiedShow Answer

Which of the following reactions would be an example of nitrogen fixation?

Correct AnswerverifiedShow Answer

Ozone (O₃) and oxygen gas (O₂) are examples of

Correct Answer
verified

What describes the trapping of heat near Earth's surface by gases (CO₂) in the atmosphere?

Correct Answer
verified

The bond energy of N₂ is 160 kJ/mol.What is the wavelength of a photon that can cause the dissociation of a N₂molecule? (h = 6.63 × 10^-34J s; c = 3.0 × 10⁸m/s and Avogadro's number = 6.022 × 10²³ molecules/mole)

Correct Answer
verified

Correct Answer
verified

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

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The rate constant of the reaction Cl + CHCl₃ → HCl + CCl₃ is 5.8 × 10⁷ M^-1 s^-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

Correct Answer
verified

Correct Answer
verified

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

Correct Answer
verified

Correct Answer
verified

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