Question 1

On a Periodic Table,the columns of elements with similar properties are

Accepted Answer

A) periods. 
B) groups. 
C) rows. 
D) metals. 
A) periods. 
B) groups. 
C) rows. 
D) metals.

Question 2

Which diagram(s)best represent(s)only individual atoms?

Accepted Answer

A) I only 
B) II only 
C) III only 
D) IV only 
E) II and III only 
A) I only 
B) II only 
C) III only 
D) IV only 
E) II and III only

Question 3

The two main products of the combustion of gasoline in an automobile engine are

Accepted Answer

A) oxygen and carbon monoxide. 
B) sulfur oxides and nitrogen oxides. 
C) sulfur oxides and hydrogen. 
D) water and carbon dioxide. 
A) oxygen and carbon monoxide. 
B) sulfur oxides and nitrogen oxides. 
C) sulfur oxides and hydrogen. 
D) water and carbon dioxide.

Question 4

All of these pollutants can be detected by their odors except:

Accepted Answer

A) CO 
B) O3 
C) SOx 
D) NOx 
A) CO 
B) O3 
C) SOx 
D) NOx

Question 5

Which of the following contains the most atoms?

Accepted Answer

A) Methane 
B) Ethane 
C) Butane 
D) Propane 
A) Methane 
B) Ethane 
C) Butane 
D) Propane

Question 6

Choose the proper coefficients for each substance to balance this equation.
____ C2H4(g)+ ____ O2(g)→ ____ CO2(g)+ ____ H2O(g)

Accepted Answer

A) 1,1,2,2 
B) 1,3,2,2 
C) 2,3,4,2 
D) 2,2,4,2 
A) 1,1,2,2 
B) 1,3,2,2 
C) 2,3,4,2 
D) 2,2,4,2

Question 7

Air is a(n)

Accepted Answer

A) element. 
B) compound. 
C) mixture. 
D) pure substance. 
A) element. 
B) compound. 
C) mixture. 
D) pure substance.

Question 8

Except in the case of hydrocarbons,when naming virtually all compounds made up of two elements,the second element mentioned

Accepted Answer

A) ends in "ide." 
B) is preceded by "mono" (or occasionally "mon"). 
C) is always the more metallic element. 
D) is the one present in the greater number of atoms. 
A) ends in "ide." 
B) is preceded by "mono" (or occasionally "mon"). 
C) is always the more metallic element. 
D) is the one present in the greater number of atoms.

Question 9

A substance that can be broken down into two or more simpler substances by chemical methods is called a(n)

Accepted Answer

A) compound. 
B) mixture. 
C) element. 
D) isotope. 
A) compound. 
B) mixture. 
C) element. 
D) isotope.

Question 10

Which component of the air makes up approximately 100 times more of an exhaled breath than of an inhaled breath?

Accepted Answer

A) Ar 
B) O2 
C) O3 
D) CO2 
A) Ar 
B) O2 
C) O3 
D) CO2

Question 11

Which shows the balanced equation for the reaction of nitrogen ( ),as it is normally found in our atmosphere,with oxygen ( ),as it is normally found in our atmosphere,to form nitrogen dioxide?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 12

A particular sample of air is 2.5% water vapor.Express the concentration of water vapor in parts per million (ppm).

Accepted Answer

A) 0.0000025 ppm 
B) 0.025 ppm 
C) 250 ppm 
D) 25000 ppm 
A) 0.0000025 ppm 
B) 0.025 ppm 
C) 250 ppm 
D) 25000 ppm

Question 13

What two factors are considered when determining the risk assessment for air pollutants?

Accepted Answer

A) exposure and ppm 
B) percentage and ppm 
C) toxicity and percentage 
D) toxicity and exposure 
A) exposure and ppm 
B) percentage and ppm 
C) toxicity and percentage 
D) toxicity and exposure

Question 14

-Based on Table 1.1,which air pollutant is the only one to have increased between 1983 and 2002?

Accepted Answer

A) sulfur dioxide 
B) ozone 
C) particulate matter 
D) None of these choices is correct. 
A) sulfur dioxide 
B) ozone 
C) particulate matter 
D) None of these choices is correct.

Question 15

If we assume that the top of Mt.Everest is the highest land mass on earth,hikers who scale its summit are standing in the

Accepted Answer

A) mesosphere. 
B) stratosphere. 
C) troposphere. 
D) ozone layer. 
A) mesosphere. 
B) stratosphere. 
C) troposphere. 
D) ozone layer.

Question 16

Which if the following is the chemical symbol for silver?

Accepted Answer

A) Au 
B) Pb 
C) Ag 
D) Fe 
A) Au 
B) Pb 
C) Ag 
D) Fe

Question 17

Which process does not involve a chemical change?

Accepted Answer

A) burning charcoal on the grill 
B) digesting food 
C) boiling water 
D) cleaning the shower with Lime Away 
A) burning charcoal on the grill 
B) digesting food 
C) boiling water 
D) cleaning the shower with Lime Away

Question 18

The chemical formula for nitrogen monoxide is:

Accepted Answer

A) N2O 
B) NO 
C) NO2 
D) N2O3 
A) N2O 
B) NO 
C) NO2 
D) N2O3

Question 19

The quantity 0.0000064 g expressed in scientific notation is:

Accepted Answer

A) 6.4 × 106 g 
B) 6.4 × 10¯6 g 
C) 6.4 × 107 g 
D) 6.4 × 10¯7 g 
A) 6.4 × 106 g 
B) 6.4 × 10¯6 g 
C) 6.4 × 107 g 
D) 6.4 × 10¯7 g

Question 20

Which substance is not considered to be an air pollutant?

Accepted Answer

A) N2 
B) SO2 
C) NO2 
D) O3 
A) N2 
B) SO2 
C) NO2 
D) O3

On a Periodic Table,the columns of elements with similar properties are

Which diagram(s)best represent(s)only individual atoms?

The two main products of the combustion of gasoline in an automobile engine are

All of these pollutants can be detected by their odors except:

Which of the following contains the most atoms?

Choose the proper coefficients for each substance to balance this equation. C₂H₄(g)+ O₂(g)→ CO₂(g)+ H₂O(g)

Air is a(n)

Except in the case of hydrocarbons,when naming virtually all compounds made up of two elements,the second element mentioned

A substance that can be broken down into two or more simpler substances by chemical methods is called a(n)

Which component of the air makes up approximately 100 times more of an exhaled breath than of an inhaled breath?

Which shows the balanced equation for the reaction of nitrogen (),as it is normally found in our atmosphere,with oxygen (),as it is normally found in our atmosphere,to form nitrogen dioxide?

A particular sample of air is 2.5% water vapor.Express the concentration of water vapor in parts per million (ppm).

What two factors are considered when determining the risk assessment for air pollutants?

-Based on Table 1.1,which air pollutant is the only one to have increased between 1983 and 2002?

If we assume that the top of Mt.Everest is the highest land mass on earth,hikers who scale its summit are standing in the

Which if the following is the chemical symbol for silver?

Which process does not involve a chemical change?

The chemical formula for nitrogen monoxide is:

The quantity 0.0000064 g expressed in scientific notation is:

Which substance is not considered to be an air pollutant?

Protecting the Ozone Layer

The Chemistry of Global Climate Change

Energy From Combustion

Water for Life

Neutralizing the Threat of Acid Rain

The Fires of Nuclear Fission

Energy From Electron Transfer

The World of Polymers and Plastics

Manipulating Molecules and Designing Drugs

Nutrition: Food for Thought

Genetic Engineering and the Molecules of Life

Filters

Exam 1: The Air We Breathe

On a Periodic Table,the columns of elements with similar properties are

Which diagram(s)best represent(s)only individual atoms?

The two main products of the combustion of gasoline in an automobile engine are

All of these pollutants can be detected by their odors except:

Which of the following contains the most atoms?

Choose the proper coefficients for each substance to balance this equation. ____ C2H4(g)+ ____ O2(g)→ ____ CO2(g)+ ____ H2O(g)

Air is a(n)

Except in the case of hydrocarbons,when naming virtually all compounds made up of two elements,the second element mentioned

A substance that can be broken down into two or more simpler substances by chemical methods is called a(n)

Which component of the air makes up approximately 100 times more of an exhaled breath than of an inhaled breath?

Which shows the balanced equation for the reaction of nitrogen (),as it is normally found in our atmosphere,with oxygen (),as it is normally found in our atmosphere,to form nitrogen dioxide?

A particular sample of air is 2.5% water vapor.Express the concentration of water vapor in parts per million (ppm).

What two factors are considered when determining the risk assessment for air pollutants?

-Based on Table 1.1,which air pollutant is the only one to have increased between 1983 and 2002?

If we assume that the top of Mt.Everest is the highest land mass on earth,hikers who scale its summit are standing in the

Which if the following is the chemical symbol for silver?

Which process does not involve a chemical change?

The chemical formula for nitrogen monoxide is:

The quantity 0.0000064 g expressed in scientific notation is:

Which substance is not considered to be an air pollutant?

Protecting the Ozone Layer

The Chemistry of Global Climate Change

Energy From Combustion

Water for Life

Neutralizing the Threat of Acid Rain

The Fires of Nuclear Fission

Energy From Electron Transfer

The World of Polymers and Plastics

Manipulating Molecules and Designing Drugs

Nutrition: Food for Thought

Genetic Engineering and the Molecules of Life

Filters

Choose the proper coefficients for each substance to balance this equation. C₂H₄(g)+ O₂(g)→ CO₂(g)+ H₂O(g)