Question 1

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

Accepted Answer

Photochemical smog

Question 2

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

Accepted Answer

A) Fe 
B) H 
C) K 
D) P 
E) O 
A) Fe 
B) H 
C) K 
D) P 
E) O E

Question 3

How many different ways can a water molecule vibrate?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) millions 
A) 1 
B) 2 
C) 3 
D) 4 
E) millions C

Question 4

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. 
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.

Question 5

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. 
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.

Question 6

Which region of the atmosphere contains the ozone layer?

Accepted Answer

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

Question 7

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

Question 8

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 9

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) stratosphere 
A) outer atmosphere 
B) mesosphere 
C) thermosphere 
D) troposphere 
E) stratosphere

Question 10

How is atmospheric oxygen removed from the environment?

Accepted Answer

through respiration

Question 11

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

Accepted Answer

A) Earth's crust 
B) mesosphere 
C) ionosphere 
D) troposphere 
E) stratosphere 
A) Earth's crust 
B) mesosphere 
C) ionosphere 
D) troposphere 
E) stratosphere

Question 12

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 + 2H2O 
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 + 2H2O

Question 13

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

Accepted Answer

A) D2O 
B) H2 
C) NO2 
D) F2 
E) He 
A) D2O 
B) H2 
C) NO2 
D) F2 
E) He

Question 14

_______________ 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 15

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 ash 
A) magma 
B) mantle eruptions 
C) crustaceans 
D) molten eruptions 
E) volcanic ash

Question 16

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

Accepted Answer

Cl(g)+ O₃(g)→ ClO(g)+

Question 17

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

Accepted Answer

A) SO3 
B) CO2 
C) BaO 
D) NO2 
A) SO3 
B) CO2 
C) BaO 
D) NO2

Question 18

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 ≈ biological 
A) biological 
B) atmospheric 
C) industrial 
D) industrial ≈ atmospheric 
E) industrial ≈ biological

Question 19

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

Accepted Answer

O₂(g)+ hv →

Question 20

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

Accepted Answer

A) True 
 B)False

Exam 21: Environmental Chemistry

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

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

How many different ways can a water molecule vibrate?

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

The presence of ozone in the upper atmosphere is important because

Which region of the atmosphere contains the ozone layer?

Ozone in the stratosphere protects animals and plants from

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

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

How is atmospheric oxygen removed from the environment?

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

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?

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

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

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

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

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

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

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

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

Chemistry: the Central Science

Atoms Molecules and Ions

Stoichiometry Ratios of Combination

Reactions in Aqueous Solutions

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Electron Configuration and the Periodic Table

Chemical Bonding I Basic Concepts

Chemical Bonding Ii Molecular Geometry and Bonding Theories

Gases

Intermolecular Forces and the Physical Properties of Liquids and Solids

Modern Materials

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy Free Energy and Equilibrium

Electrochemistry

Nuclear Chemistry

Coordination Chemistry

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Organic Chemistry

Filters

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

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?