Question 1

Non-biodegradable organic compounds (such as chlorinated hydrocarbons) are removed from water in

Accepted Answer

A)  tertiary treatment. 
B)  secondary treatment. 
C)  primary treatment. 
D)  denitrifying bacteria. 
A)  tertiary treatment. 
B)  secondary treatment. 
C)  primary treatment. 
D)  denitrifying bacteria.

Question 2

Freshwater can be made from seawater by

Accepted Answer

A)  distillation. 
B)  reverse osmosis. 
C)  filtration. 
D)  both a and b above 
A)  distillation. 
B)  reverse osmosis. 
C)  filtration. 
D)  both a and b above

Question 3

Biochemical oxygen demand (BOD) is

Accepted Answer

A)  high for polluted water. 
B)  low for polluted water. 
C)  not affected by water pollution. 
D)  a measure of the amount of oxygen in the body. 
A)  high for polluted water. 
B)  low for polluted water. 
C)  not affected by water pollution. 
D)  a measure of the amount of oxygen in the body.

Question 4

Of the household wastes listed below (all of which would be considered industrial hazardous wastes), which one could be disposed of down the sink?

Accepted Answer

A)  oil-based paints 
B)  furniture polish 
C)  latex paint 
D)  automotive antifreeze 
A)  oil-based paints 
B)  furniture polish 
C)  latex paint 
D)  automotive antifreeze

Question 5

Identify the exothermic process among the following.

Accepted Answer

A)  wood burning 
B)  boiling water 
C)  melting ice 
D)  100 cal of energy are absorbed 
A)  wood burning 
B)  boiling water 
C)  melting ice 
D)  100 cal of energy are absorbed

Question 6

What percentage of the human body is water?

Accepted Answer

A)  10% 
B)  40-50% 
C)  70% 
D)  98% 
A)  10% 
B)  40-50% 
C)  70% 
D)  98%

Question 7

In what part of the United States is acid rain particularly prevalent?

Accepted Answer

A)  northeast 
B)  southwest 
C)  northwest 
D)  central plains 
A)  northeast 
B)  southwest 
C)  northwest 
D)  central plains

Question 8

Fertilizers such as nitrates and phosphates are examples of what type of pollutant?

Accepted Answer

A)  minerals and chemicals 
B)  infectious agents 
C)  plant nutrients 
D)  oxygen-demanding wastes 
A)  minerals and chemicals 
B)  infectious agents 
C)  plant nutrients 
D)  oxygen-demanding wastes

Question 9

What common household hazardous waste is not correctly associated with the harmful ingredient?

Accepted Answer

A)  gasoline - organic solvents 
B)  nail polish remover - organic solvents 
C)  bathroom cleaners - wax and heavy metals 
D)  latex paint - organic polymers 
A)  gasoline - organic solvents 
B)  nail polish remover - organic solvents 
C)  bathroom cleaners - wax and heavy metals 
D)  latex paint - organic polymers

Question 10

Suppose the following conversion could occur. Which of the following would correctly describe this conversion?

Accepted Answer

A)  The reactant is nonbiodegradable. 
B)  Both represent detergent molecules. 
C)  The product can be broken down by microorganisms. 
D)  All of the above are correct. 
A)  The reactant is nonbiodegradable. 
B)  Both represent detergent molecules. 
C)  The product can be broken down by microorganisms. 
D)  All of the above are correct.

Question 11

How much heat is required to heat 25 g of liquid water from 20S1U1P1$\circ$S1S1P0C to 100S1U1P1$\circ$S1S1P0C?

Accepted Answer

A)  25 cal 
B)  1000 cal 
C)  2000 cal 
D)  13500 cal 
A)  25 cal 
B)  1000 cal 
C)  2000 cal 
D)  13500 cal

Question 12

Consider the following image showing water resources.   Complete the following questions using the appropriate letter from the image. More than one letter may be correct and some letters may not be used. You need only enter one letter for each question.
-The type of well in which pumping is not required to obtain water is shown by letter _____.

Accepted Answer

The answer of Consider the following image showing water resources....

Question 13

Which of the following is responsible for the largest amount of water consumed in the United States?

Accepted Answer

A)  households 
B)  agriculture 
C)  industry 
D)  thermoelectric power 
A)  households 
B)  agriculture 
C)  industry 
D)  thermoelectric power

Question 14

Why are disinfection by-products a health concern?

Accepted Answer

A)  They are toxic. 
B)  They are electrically charged. 
C)  They are suspected carcinogens. 
D)  They decrease the oxygen level in the water. 
A)  They are toxic. 
B)  They are electrically charged. 
C)  They are suspected carcinogens. 
D)  They decrease the oxygen level in the water.

Question 15

Consider the following image showing water resources.   Complete the following questions using the appropriate letter from the image. More than one letter may be correct and some letters may not be used. You need only enter one letter for each question.
-Letter ____ shows the position of an aquifer.

Accepted Answer

The answer of Consider the following image showing water resources....

Question 16

Which of the following would be considered polluted water?

Accepted Answer

A)  water containing dissolved metal salts 
B)  water which has been heated above normal 
C)  water containing organic solvents 
D)  all of these 
A)  water containing dissolved metal salts 
B)  water which has been heated above normal 
C)  water containing organic solvents 
D)  all of these

Question 17

Of the following properties of water which is associated with the moderating influence that large bodies of water have on climate?

Accepted Answer

A)  density 
B)  surface tension 
C)  heat capacity 
D)  boiling point 
A)  density 
B)  surface tension 
C)  heat capacity 
D)  boiling point

Question 18

Of the 2.5% fresh water supply, what amount is available as groundwater or surface water for human use?

Accepted Answer

A)  100% 
B)  97.5% 
C)  2.5% 
D)  less than 1% 
A)  100% 
B)  97.5% 
C)  2.5% 
D)  less than 1%

Question 19

The pH of rain is not 7 due to the presence of dissolved carbon dioxide.

Accepted Answer

A) True 
 B)False

Question 20

What physical state is water found under normal conditions that exist on Earth?

Accepted Answer

A)  solid 
B)  liquid 
C)  gas 
D)  all the above 
A)  solid 
B)  liquid 
C)  gas 
D)  all the above

Non-biodegradable organic compounds (such as chlorinated hydrocarbons) are removed from water in

Freshwater can be made from seawater by

Biochemical oxygen demand (BOD) is

Of the household wastes listed below (all of which would be considered industrial hazardous wastes), which one could be disposed of down the sink?

Identify the exothermic process among the following.

What percentage of the human body is water?

In what part of the United States is acid rain particularly prevalent?

Fertilizers such as nitrates and phosphates are examples of what type of pollutant?

What common household hazardous waste is not correctly associated with the harmful ingredient?

Suppose the following conversion could occur. Which of the following would correctly describe this conversion?

How much heat is required to heat 25 g of liquid water from 20^$\circ$C to 100^$\circ$C?

Which of the following is responsible for the largest amount of water consumed in the United States?

Why are disinfection by-products a health concern?

Consider the following image showing water resources. Complete the following questions using the appropriate letter from the image. More than one letter may be correct and some letters may not be used. You need only enter one letter for each question. -Letter ____ shows the position of an aquifer.

Which of the following would be considered polluted water?

Of the following properties of water which is associated with the moderating influence that large bodies of water have on climate?

Of the 2.5% fresh water supply, what amount is available as groundwater or surface water for human use?

The pH of rain is not 7 due to the presence of dissolved carbon dioxide.

What physical state is water found under normal conditions that exist on Earth?

Living in a World of Chemistry

The Chemical View of Matter

Atoms and the Periodic Table

The Air We Breathe

Chemical Bonding and States of Matter

Carbon Dioxide and the Greenhouse Effect

Chlorofluorocarbons and the Ozone Layer

Chemical Reactivity: Chemicals in Action

Acid-Base Reactions

Oxidation-Reduction Reactions

Energy and Hydrocarbons

Nuclear Changes and Nuclear Power

Organic Chemicals and Polymers

The Chemistry of Life

Nutrition: the Basis of Healthy Living

Chemistry and Medicine

The Chemistry of Useful Materials

Feeding the World

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Exam 11: Water, Water Everywhere but Not a Drop to Drink

Non-biodegradable organic compounds (such as chlorinated hydrocarbons) are removed from water in

Freshwater can be made from seawater by

Biochemical oxygen demand (BOD) is

Of the household wastes listed below (all of which would be considered industrial hazardous wastes), which one could be disposed of down the sink?

Identify the exothermic process among the following.

What percentage of the human body is water?

In what part of the United States is acid rain particularly prevalent?

Fertilizers such as nitrates and phosphates are examples of what type of pollutant?

What common household hazardous waste is not correctly associated with the harmful ingredient?

Suppose the following conversion could occur. Which of the following would correctly describe this conversion?

How much heat is required to heat 25 g of liquid water from 20 ∘\circ∘ C to 100 ∘\circ∘ C?

Which of the following is responsible for the largest amount of water consumed in the United States?

Why are disinfection by-products a health concern?

Consider the following image showing water resources. Complete the following questions using the appropriate letter from the image. More than one letter may be correct and some letters may not be used. You need only enter one letter for each question. -Letter ____ shows the position of an aquifer.

Which of the following would be considered polluted water?

Of the following properties of water which is associated with the moderating influence that large bodies of water have on climate?

Of the 2.5% fresh water supply, what amount is available as groundwater or surface water for human use?

The pH of rain is not 7 due to the presence of dissolved carbon dioxide.

What physical state is water found under normal conditions that exist on Earth?

Living in a World of Chemistry

The Chemical View of Matter

Atoms and the Periodic Table

The Air We Breathe

Chemical Bonding and States of Matter

Carbon Dioxide and the Greenhouse Effect

Chlorofluorocarbons and the Ozone Layer

Chemical Reactivity: Chemicals in Action

Acid-Base Reactions

Oxidation-Reduction Reactions

Energy and Hydrocarbons

Nuclear Changes and Nuclear Power

Organic Chemicals and Polymers

The Chemistry of Life

Nutrition: the Basis of Healthy Living

Chemistry and Medicine

The Chemistry of Useful Materials

Feeding the World

Filters

How much heat is required to heat 25 g of liquid water from 20^$\circ$C to 100^$\circ$C?