Question 1

Which of these species is not an acidic oxide?

Accepted Answer

A)   P4O10
B)   P4O6
C)   SO3
D)   CO
E)   SiO2F) A) and C)
G) C) and E)

Question 2

Choose the incorrect statement concerning radon gas.

Accepted Answer

A)   Radon gas is found at home.
B)   Radon is a noble gas.
C)   Radon accounts for 3/4 of the Earth's background radioactivity.
D)   Radon-222 is the most hazardous form of radon due to a half-life of 3.8 days.E) C) and D)
F) A) and D)

Question 3

________ 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 4

When radon decays it produces Po-214 and Po-218. This means that

Accepted Answer

A)   a gas (radon)  is converted into a solid (Po) .
B)   radon decays into nonhazardous products.
C)   after the decay there is no danger due to radioactivity.
D)   the polonium can be swept out of the basement.
E)   None of these choices.F) All of the above
G) A) and C)

Question 5

Nitric acid is converted to ________ in the soil.

Accepted Answer

The answer of Nitric acid is converted to ________ in...

Question 6

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

Accepted Answer

CaCO₃ + 2H⁺ ...

Question 7

Ozone

Accepted Answer

A)   dissociates to O and O2 by absorbing UV energy.
B)   is formed by the combination of oxygen atoms with O2 molecules.
C)   can be destroyed by chlorine atoms that result from the decomposition of chlorocarbons in the stratosphere.
D)   All of the choices are correct.
E)   None of these choices.F) A) and D)
G) C) and E)

Question 8

Ozone protects us from ultraviolet light by

Accepted Answer

A)   reflecting the light from the ozone layer.
B)   reacting with oxygen atoms to form O2.
C)   dissociating into O2 and oxygen atoms.
D)   None of these choices.E) B) and C)
F) C) and D)

Question 9

Acid rain is precipitation having a pH that is

Accepted Answer

A)   above 7.
B)   below 5.5.
C)   below 7.
D)   above 8.6.
E)   above 10.F) D) and E)
G) C) and D)

Question 10

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

Question 11

The gases spewed into the atmosphere when a volcano erupts are N2, H2S, HCl, HF, CO2, and water vapor.

Accepted Answer

A) True 
 B)False

Question 12

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

Question 13

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

Accepted Answer

O₂(g) + hv ...

Question 14

How is atmospheric oxygen removed from the environment?

Accepted Answer

through respiration ...

Question 15

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) B) and D)

Question 16

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

Accepted Answer

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

Question 17

Chlorofluorocarbons diffuse in the troposphere where they begin to decompose allowing the chlorine atoms to break down ozone.

Accepted Answer

A)   True
B)   FalseC) A) and B)
D) undefined

Question 18

Name four "greenhouse gases" besides carbon dioxide.

Accepted Answer

methane, n...

Question 19

Which below is a CFC?

Accepted Answer

A)   CFCl3
B)   CF2Cl2
C)   C2F3Cl3
D)   All of the choices are correct.
E)   None of these choices is correct.F) B) and C)
G) C) and E)

Question 20

What colors do excited nitrogen molecules emit?

Accepted Answer

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

Exam 21: Environmental Chemistry

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

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

Correct AnswerverifiedShow Answer

When radon decays it produces Po-214 and Po-218. This means that

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Acid rain is precipitation having a pH that is

Correct AnswerverifiedShow Answer

Nitric acid is converted to ________ in the soil.

Correct AnswerverifiedShow Answer

Name four "greenhouse gases" besides carbon dioxide.

Correct Answerverifiedmethane, n...View AnswerShow Answer

What colors do excited nitrogen molecules emit?

Correct AnswerverifiedShow Answer

Ozone

Correct AnswerverifiedShow Answer

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

Which of these species is not an acidic oxide?

Correct AnswerverifiedShow Answer

How is atmospheric oxygen removed from the environment?

Correct Answerverifiedthrough respiration ...View AnswerShow Answer

Which below is a CFC?

Correct AnswerverifiedShow Answer

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

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

Choose the incorrect statement concerning radon gas.

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

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

Correct AnswerverifiedShow Answer

Chlorofluorocarbons diffuse in the troposphere where they begin to decompose allowing the chlorine atoms to break down ozone.

Correct AnswerverifiedShow Answer

The gases spewed into the atmosphere when a volcano erupts are N2, H2S, HCl, HF, CO2, and water vapor.

Correct AnswerverifiedShow Answer

Ozone protects us from ultraviolet light by

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 Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
methane, n...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
through respiration ...
View Answer

Correct Answer
verified

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

Correct Answer
verified

Correct Answer
verified
O₂(g) + hv ...
View Answer

Correct Answer
verified

Correct Answer
verified

The gases spewed into the atmosphere when a volcano erupts are N₂, H₂S, HCl, HF, CO₂, and water vapor.

Correct Answer
verified

Correct Answer
verified