Question 1

In general,which airborne material is not likely to be affected by the filters or indoor air handling equipment?

Accepted Answer

A) particulates 
B) pollen 
C) soot 
D) carbon monoxide 
A) particulates 
B) pollen 
C) soot 
D) carbon monoxide

Question 2

Which symbol(s)represent(s)elements in the noble gas family?

Accepted Answer

A) X and Z 
B) P and L 
C) Q 
D) Y 
A) X and Z 
B) P and L 
C) Q 
D) Y

Question 3

If 500 mL of air contains 2 x 1022 particles (atoms and molecules),how many particles do you inhale in one day if you breathe 15000 L of air?

Accepted Answer

A) 2 x 1022 
B) 6 x 1026 
C) 1.2 x 1027 
D) 5 x 1024 
A) 2 x 1022 
B) 6 x 1026 
C) 1.2 x 1027 
D) 5 x 1024

Question 4

The lowest (or closest to the ground)layer of our atmosphere is the

Accepted Answer

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

Question 5

Which color,as used in the Air Quality Index,warns that the level of a pollutant is hazardous,the most dangerous level?

Accepted Answer

A) orange 
B) green 
C) yellow 
D) maroon 
A) orange 
B) green 
C) yellow 
D) maroon

Question 6

Green chemistry is

Accepted Answer

A) the study of how to improve the production of oxygen via photosynthesis. 
B) any chemistry having an agricultural base. 
C) the cause of the higher temperatures and humidity typically found in greenhouses. 
D) the design of products and processes that reduce hazardous substances. 
A) the study of how to improve the production of oxygen via photosynthesis. 
B) any chemistry having an agricultural base. 
C) the cause of the higher temperatures and humidity typically found in greenhouses. 
D) the design of products and processes that reduce hazardous substances.

Question 7

Which is not a mixture?

Accepted Answer

A) a jar filled with rocks and sand 
B) sea water 
C) a glass of Kool-Aid 
D) sodium chloride 
A) a jar filled with rocks and sand 
B) sea water 
C) a glass of Kool-Aid 
D) sodium chloride

Question 8

Which of the following would be described as "fine particles"?

Accepted Answer

A) SOx 
B) NOx 
C) O3 
D) 2.5 μm diameter soot 
A) SOx 
B) NOx 
C) O3 
D) 2.5 μm diameter soot

Question 9

Which component of the air is an element?

Accepted Answer

A) H2O 
B) NO2 
C) O3 
D) CO2 
A) H2O 
B) NO2 
C) O3 
D) CO2

Question 10

Which two gases make up more than 95% of an inhaled breath?

Accepted Answer

A) NO2 and N2 
B) CO2 and O2 
C) O2 and N2 
D) N2 and Ar 
A) NO2 and N2 
B) CO2 and O2 
C) O2 and N2 
D) N2 and Ar

Question 11

Although only about 100 elements exist,over __________________ compounds have been isolated,identified,and characterized.

Accepted Answer

A) one hundred thousand 
B) one million 
C) 20 million 
D) 10 billion 
A) one hundred thousand 
B) one million 
C) 20 million 
D) 10 billion

Question 12

Which is not a single pure substance?

Accepted Answer

A) copper 
B) water 
C) brass 
D) chlorine 
A) copper 
B) water 
C) brass 
D) chlorine

Question 13

During a chemical reaction,

Accepted Answer

A) atoms are rearranged. 
B) some atoms are destroyed and new ones are formed. 
C) some elements are destroyed and new ones are formed. 
D) the law of conservation of matter and mass may be briefly violateD. 
A) atoms are rearranged. 
B) some atoms are destroyed and new ones are formed. 
C) some elements are destroyed and new ones are formed. 
D) the law of conservation of matter and mass may be briefly violateD.

Question 14

The United States has more vehicles per capita than any other country,but cleaner air than many other countries because it

Accepted Answer

A) has more electric vehicles. 
B) has fewer people living in cities. 
C) has more governmental regulations on air quality. 
D) is a large country so pollutants can spread out more. 
A) has more electric vehicles. 
B) has fewer people living in cities. 
C) has more governmental regulations on air quality. 
D) is a large country so pollutants can spread out more.

Question 15

A compound and a mixture differ in that only the mixture

Accepted Answer

A) is made up of more than one element. 
B) may be made up of components that may be molecules. 
C) is of fixed composition. 
D) exhibits the properties of its individual components. 
A) is made up of more than one element. 
B) may be made up of components that may be molecules. 
C) is of fixed composition. 
D) exhibits the properties of its individual components.

Question 16

Which is not a pure substance?

Accepted Answer

A) helium 
B) copper wire 
C) air 
D) sucrose 
A) helium 
B) copper wire 
C) air 
D) sucrose

In general,which airborne material is not likely to be affected by the filters or indoor air handling equipment?

Which symbol(s)represent(s)elements in the noble gas family?

If 500 mL of air contains 2 x 10²² particles (atoms and molecules),how many particles do you inhale in one day if you breathe 15000 L of air?

The lowest (or closest to the ground)layer of our atmosphere is the

Which color,as used in the Air Quality Index,warns that the level of a pollutant is hazardous,the most dangerous level?

Green chemistry is

Which is not a mixture?

Which of the following would be described as "fine particles"?

Which component of the air is an element?

Which two gases make up more than 95% of an inhaled breath?

Although only about 100 elements exist,over __________________ compounds have been isolated,identified,and characterized.

Which is not a single pure substance?

During a chemical reaction,

The United States has more vehicles per capita than any other country,but cleaner air than many other countries because it

A compound and a mixture differ in that only the mixture

Which is not a pure substance?

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

In general,which airborne material is not likely to be affected by the filters or indoor air handling equipment?

Which symbol(s)represent(s)elements in the noble gas family?

If 500 mL of air contains 2 x 1022 particles (atoms and molecules),how many particles do you inhale in one day if you breathe 15000 L of air?

The lowest (or closest to the ground)layer of our atmosphere is the

Which color,as used in the Air Quality Index,warns that the level of a pollutant is hazardous,the most dangerous level?

Green chemistry is

Which is not a mixture?

Which of the following would be described as "fine particles"?

Which component of the air is an element?

Which two gases make up more than 95% of an inhaled breath?

Although only about 100 elements exist,over __________________ compounds have been isolated,identified,and characterized.

Which is not a single pure substance?

During a chemical reaction,

The United States has more vehicles per capita than any other country,but cleaner air than many other countries because it

A compound and a mixture differ in that only the mixture

Which is not a pure substance?

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

If 500 mL of air contains 2 x 10²² particles (atoms and molecules),how many particles do you inhale in one day if you breathe 15000 L of air?