Question 1

The concentration of which greenhouse gas has increased steadily over the last few decades?

Accepted Answer

A) H2O 
B) CO 
C) CO2 
D) H2O2 
E) O2 
A) H2O 
B) CO 
C) CO2 
D) H2O2 
E) O2

Question 2

The greenhouse effect of a methane molecule far exceeds the effect of a carbon dioxide molecule.

Accepted Answer

A) True 
 B)False

Question 3

What is meant by the salinity of seawater?

Accepted Answer

A) percent by mass of salt in seawater 
B) mass in grams of dry salts present in 1 kg of seawater 
C) molality of NaCl in seawater 
D) osmotic pressure of seawater 
E) molarity of NaCl in seawater 
A) percent by mass of salt in seawater 
B) mass in grams of dry salts present in 1 kg of seawater 
C) molality of NaCl in seawater 
D) osmotic pressure of seawater 
E) molarity of NaCl in seawater

Question 4

What is the total pressure (torr)inside a container that contains a gas at 8.57 × 103 ppm where its partial pressure is 1.87 torr?

Accepted Answer

A) 4.58 × 109 
B) 1.60 × 10-2 
C) 2.18 × 10-4 
D) 218 
E) 0.218 
A) 4.58 × 109 
B) 1.60 × 10-2 
C) 2.18 × 10-4 
D) 218 
E) 0.218

Question 5

Organic material that bacteria are able to oxidize is known as ________.

Accepted Answer

The answer of Organic material that bacteria are able to...

Question 6

________ and ________ are major contributors to the depletion of the ozone layer.

Accepted Answer

Nitrogen o

Question 7

What is the final stage in municipal water treatment?

Accepted Answer

A) treatment with ozone or chlorine 
B) course filtration through a screen 
C) addition of CaO/Al2(SO4)3 and settling 
D) sand bed filtration 
E) aeration 
A) treatment with ozone or chlorine 
B) course filtration through a screen 
C) addition of CaO/Al2(SO4)3 and settling 
D) sand bed filtration 
E) aeration

Question 8

Which of the following is arranged correctly in order of increasing distance from Earth's surface?

Accepted Answer

A) mesosphere < troposphere < stratosphere < thermosphere 
B) troposphere < mesosphere < stratosphere < thermosphere 
C) troposphere < mesosphere < thermosphere < stratosphere 
D) troposphere < stratosphere < mesosphere < thermosphere 
E) mesosphere < troposphere < thermosphere < stratosphere 
A) mesosphere < troposphere < stratosphere < thermosphere 
B) troposphere < mesosphere < stratosphere < thermosphere 
C) troposphere < mesosphere < thermosphere < stratosphere 
D) troposphere < stratosphere < mesosphere < thermosphere 
E) mesosphere < troposphere < thermosphere < stratosphere

Question 9

Of the reactions involved in the photodecomposition of ozone (shown below),which are photochemical?
1.O2 (g)+ hν → O (g)+ O (g)
2.O (g)+ O2 (g)+ M (g)→ O3 (g)+ M* (g)
3.O3 (g)+ hν → O2 (g)+ O (g)
4.O (g)+ O (g)+ M (g)→ O2 (g)+ M* (g)

Accepted Answer

A) 2 and 4 
B) 1, 2, and 4 
C) 1 and 3 
D) 1 only 
E) all of them 
A) 2 and 4 
B) 1, 2, and 4 
C) 1 and 3 
D) 1 only 
E) all of them

Question 10

The area of the Earth's atmosphere 50 - 85 km above the surface is called the ________.

Accepted Answer

A) mesosphere 
B) thermosphere 
C) troposphere 
D) stratosphere 
E) exosphere 
A) mesosphere 
B) thermosphere 
C) troposphere 
D) stratosphere 
E) exosphere

Question 11

Sulfur compounds in the atmosphere are equally derived from natural sources and from human activity.

Accepted Answer

A) True 
 B)False

Question 12

Nitric oxide arises from internal combustion engines.

Accepted Answer

A) True 
 B)False

Question 13

Ozone is a(n)________ of oxygen.

Accepted Answer

A) isomer 
B) allotrope 
C) isotope 
D) resonance structure 
E) atomic form 
A) isomer 
B) allotrope 
C) isotope 
D) resonance structure 
E) atomic form

Question 14

Which one of the following is a source of carbon dioxide in the troposphere?

Accepted Answer

A) natural gas seepage 
B) electrical discharges 
C) fossil-fuel combustion 
D) volcanic gases 
E) forest fires 
A) natural gas seepage 
B) electrical discharges 
C) fossil-fuel combustion 
D) volcanic gases 
E) forest fires

Question 15

Clean rainwater is ________ mainly due to the presence of carbon dioxide.

Accepted Answer

The answer of Clean rainwater is ________ mainly due to...

Question 16

Describe the process of reverse osmosis that is used to desalinate seawater.

Accepted Answer

Water is fed,at high pressure,

Question 17

Ozone is more efficient at killing bacteria in water,yet chlorine is used more commonly for that purpose in municipal water treatment.Why?

Accepted Answer

Ozone must be genera

Question 18

Water containing high concentrations of ________ cations is called hard water.

Accepted Answer

A) Ca2+ 
B) Mg2+ 
C) Na+ 
D) K+ 
E) Ca2+ or Mg2+ 
A) Ca2+ 
B) Mg2+ 
C) Na+ 
D) K+ 
E) Ca2+ or Mg2+

Question 19

Which process in the Global Water Cycle involves the phase transition

Accepted Answer

A) evaporation from fresh water 
B) fog drip 
C) plant uptake 
D) freshwater storage 
E) snowmelt runoff to streams 
A) evaporation from fresh water 
B) fog drip 
C) plant uptake 
D) freshwater storage 
E) snowmelt runoff to streams

Question 20

The principal component of smog is sulfur dioxide.

Accepted Answer

A) True 
 B)False

Exam 18: Chemistry of the Environment

The concentration of which greenhouse gas has increased steadily over the last few decades?

The greenhouse effect of a methane molecule far exceeds the effect of a carbon dioxide molecule.

What is meant by the salinity of seawater?

What is the total pressure (torr)inside a container that contains a gas at 8.57 × 103 ppm where its partial pressure is 1.87 torr?

Organic material that bacteria are able to oxidize is known as ________.

________ and ________ are major contributors to the depletion of the ozone layer.

What is the final stage in municipal water treatment?

Which of the following is arranged correctly in order of increasing distance from Earth's surface?

Of the reactions involved in the photodecomposition of ozone (shown below),which are photochemical? 1.O2 (g)+ hν → O (g)+ O (g) 2.O (g)+ O2 (g)+ M (g)→ O3 (g)+ M* (g) 3.O3 (g)+ hν → O2 (g)+ O (g) 4.O (g)+ O (g)+ M (g)→ O2 (g)+ M* (g)

The area of the Earth's atmosphere 50 - 85 km above the surface is called the ________.

Sulfur compounds in the atmosphere are equally derived from natural sources and from human activity.

Nitric oxide arises from internal combustion engines.

Ozone is a(n)________ of oxygen.

Which one of the following is a source of carbon dioxide in the troposphere?

Clean rainwater is ________ mainly due to the presence of carbon dioxide.

Describe the process of reverse osmosis that is used to desalinate seawater.

Ozone is more efficient at killing bacteria in water,yet chlorine is used more commonly for that purpose in municipal water treatment.Why?

Water containing high concentrations of ________ cations is called hard water.

Which process in the Global Water Cycle involves the phase transition

The principal component of smog is sulfur dioxide.

Introduction: Matter, energy, and Measurement

Atoms, molecules, and Ions

Chemical Reactions and Reaction Stoichiometry

Reactions in Aqueous Solution

Thermochemistry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Molecular Geometry and Bonding Theories

Gases

Liquids and Intermolecular Forces

Solids and Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Aqueous Equilibria

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Chemistry of the Nonmetals

Transition Metals and Coordination Chemistry

The Chemistry of Life: Organic and Biological Chemistry

Filters

What is the total pressure (torr)inside a container that contains a gas at 8.57 × 10³ ppm where its partial pressure is 1.87 torr?

and are major contributors to the depletion of the ozone layer.

Of the reactions involved in the photodecomposition of ozone (shown below),which are photochemical? 1.O₂ (g)+ hν → O (g)+ O (g) 2.O (g)+ O₂(g)+ M (g)→ O₃(g)+ M^* (g) 3.O₃ (g)+ hν → O₂(g)+ O (g) 4.O (g)+ O (g)+ M (g)→ O₂(g)+ M^* (g)