Question 1

Which of these substances is being considered as a replacement fuel for gasoline?

Accepted Answer

A)  D2O
B)  H2
C)  NO2
D)  F2
E)  HeF) None of the above
G) C) and D)

Question 2

Nitrogen fixation occurs through atmospheric,industrial,and biological processes.Which of these fixes the most nitrogen?

Accepted Answer

A)  biological
B)  atmospheric
C)  industrial
D)  industrial ≈ atmospheric
E)  industrial ≈ biologicalF) C) and D)
G) B) and C)

Question 3

How many different ways can a water molecule vibrate?

Accepted Answer

A)  1
B)  2
C)  3
D)  4
E)  millionsF) C) and E)
G) A) and C) C

Question 4

What is the layer of the atmosphere called which consists of nitrogen,oxygen,and ozone and the air temperature decreases with increasing altitude?

Accepted Answer

A)  outer atmosphere
B)  mesosphere
C)  thermosphere
D)  troposphere
E)  stratosphereF) C) and D)
G) A) and B)

Question 5

The first step in the mechanism by which ozone is formed in the stratosphere is the

Accepted Answer

A)  reaction of O2 with CO.
B)  dissociation of O2 into oxygen atoms.
C)  combination of oxygen atoms with O2.
D)  combination of oxygen atoms to form O2.
E)  interaction of N2 with ultraviolet radiation.F) B) and E)
G) B) and D)

Question 6

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

Accepted Answer

O₂(g)+ hv →...

Question 7

Which region of the atmosphere contains the ozone layer?

Accepted Answer

A)  thermosphere
B)  mesosphere
C)  stratosphere
D)  troposphereE) C) and D)
F) B) and C)

Question 8

_______________ disrupt radio transmission and are responsible for spectacular celestial light known as auroras.

Accepted Answer

The answer of _______________ disrupt radio transmission and are responsible...

Question 9

Which of the following oxides would not react with water to form an acidic solution?

Accepted Answer

A)  SO3
B)  CO2
C)  BaO
D)  NO2E) A) and B)
F) A) and C)

Question 10

What is the name of the molten rock which rises to the surface of the Earth and generates some types of volcanic eruptions?

Accepted Answer

A)  magma
B)  mantle eruptions
C)  crustaceans
D)  molten eruptions
E)  volcanic ashF) A) and D)
G) None of the above

Question 11

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

Accepted Answer

A)  CaCO3 + 2OH- → Ca(OH) 2 + CO2
B)  CaCO3 + 2H3O+ → Ca2+ + CO2 + 3H2O
C)  CaCO3 + H3O → Ca + CO2 + H2O
D)  CaCO3 + OH- → Ca2+ + CO2 + H2O
E)  CaCO3 + 2H3O+ → Ca2+ + CO2 + 2H2OF) A) and C)
G) A) and B)

Question 12

The presence of ozone in the upper atmosphere is important because

Accepted Answer

A)  O3 absorbs outgoing radiation from the Earth's surface,thus helping to keep the Earth warm.
B)  O3 absorbs harmful solar radiation.
C)  O3 dissolves in water droplets and is very reactive.
D)  O3 is a major reactant in photosynthesis.E) C) and D)
F) B) and C)

Question 13

The wavelengths of light that are absorbed by stratospheric ozone are known to cause cancer.

Accepted Answer

A) True 
 B)False

Question 14

Explain the main reason for the temperature rise on Earth because of high levels of CO2 in the atmosphere which causes the greenhouse effect.

Accepted Answer

Restricted air circulation bec...

Question 15

Ozone in the stratosphere protects animals and plants from

Accepted Answer

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

Question 16

How is atmospheric oxygen removed from the environment?

Accepted Answer

through respiration ...

Question 17

________________ is the brown haze seen over large cities caused by automobile exhaust.

Accepted Answer

Photochemical smog

Question 18

Write out the steps in the mechanism of ozone destruction by chlorine atoms.

Accepted Answer

Cl(g)+ O₃(g)→ ClO(g)+...

Question 19

Another term used for the thermosphere is which of the following?

Accepted Answer

A)  Earth's crust
B)  mesosphere
C)  ionosphere
D)  troposphere
E)  stratosphereF) All of the above
G) A) and E)

Question 20

What element is the most abundant by mass in Earth's crust?

Accepted Answer

A)  Fe
B)  H
C)  K
D)  P
E)  OF) A) and D)
G) B) and E) E

Exam 21: Environmental Chemistry

Which of these substances is being considered as a replacement fuel for gasoline?

Correct AnswerverifiedShow Answer

Nitrogen fixation occurs through atmospheric,industrial,and biological processes.Which of these fixes the most nitrogen?

Correct AnswerverifiedShow Answer

How many different ways can a water molecule vibrate?

Correct AnswerverifiedC

What is the layer of the atmosphere called which consists of nitrogen,oxygen,and ozone and the air temperature decreases with increasing altitude?

Correct AnswerverifiedShow Answer

The first step in the mechanism by which ozone is formed in the stratosphere is the

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedO2(g)+ hv →...View AnswerShow Answer

Which region of the atmosphere contains the ozone layer?

Correct AnswerverifiedShow Answer

_______________ disrupt radio transmission and are responsible for spectacular celestial light known as auroras.

Correct AnswerverifiedShow Answer

Which of the following oxides would not react with water to form an acidic solution?

Correct AnswerverifiedShow Answer

What is the name of the molten rock which rises to the surface of the Earth and generates some types of volcanic eruptions?

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 is the equation for neutralization of acid by limestone?

Correct AnswerverifiedShow Answer

The presence of ozone in the upper atmosphere is important because

Correct AnswerverifiedShow Answer

The wavelengths of light that are absorbed by stratospheric ozone are known to cause cancer.

Correct AnswerverifiedShow Answer

Explain the main reason for the temperature rise on Earth because of high levels of CO2 in the atmosphere which causes the greenhouse effect.

Correct AnswerverifiedRestricted air circulation bec...View AnswerShow Answer

Ozone in the stratosphere protects animals and plants from

Correct AnswerverifiedShow Answer

How is atmospheric oxygen removed from the environment?

Correct Answerverifiedthrough respiration ...View AnswerShow Answer

________________ is the brown haze seen over large cities caused by automobile exhaust.

Correct AnswerverifiedPhotochemical smog

Write out the steps in the mechanism of ozone destruction by chlorine atoms.

Correct AnswerverifiedCl(g)+ O3(g)→ ClO(g)+...View AnswerShow Answer

Another term used for the thermosphere is which of the following?

Correct AnswerverifiedShow Answer

What element is the most abundant by mass in Earth's crust?

Correct AnswerverifiedE

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C

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O₂(g)+ hv →...
View 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 is the equation for neutralization of acid by limestone?

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Explain the main reason for the temperature rise on Earth because of high levels of CO₂ in the atmosphere which causes the greenhouse effect.

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Restricted air circulation bec...
View Answer

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through respiration ...
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Photochemical smog

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Cl(g)+ O₃(g)→ ClO(g)+...
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E