Question 1

Choose the incorrect statement concerning radon gas.

Accepted Answer

A)  Radon gas is found at home.
B)  Radon is a noble gas.
C)  Radon accounts for 3/4 of the Earth's background radioactivity.
D)  Radon-222 is the most hazardous form of radon due to a half-life of 3.8 days.E) B) and C)
F) B) and D)

Question 2

The first "hole" in the ozone layer was found over which continent?

Accepted Answer

A)  North America
B)  South America
C)  Australia
D)  Antarctica
E)  AsiaF) B) and C)
G) A) and D)

Question 3

What is the layer of the atmosphere called that is closest to the surface of the Earth and the thinnest layer of the atmosphere?

Accepted Answer

A)  outer atmosphere
B)  mesosphere
C)  thermosphere
D)  troposphere
E)  stratosphereF) B) and C)
G) A) and E)

Question 4

Ozone

Accepted Answer

A)  dissociates to O and O2 by absorbing UV energy.
B)  is formed by the combination of oxygen atoms with O2 molecules.
C)  can be destroyed by chlorine atoms that result from the decomposition of chlorocarbons in the stratosphere.
D)  All of the.
E)  None of the.F) A) and D)
G) B) and C)

Question 5

Lightning,fires,and other atmospheric processes result in the formation of nitric acid,HNO3,from atmospheric N2,O2,and H2O.Write balanced chemical equations to represent the three reactions involved in the formation of HNO3 by this route.

Accepted Answer

N₂ (g)+ O₂(g)→ 2NO(g),...

Question 6

What is the cause of radon being detected in homes?

Accepted Answer

Homes are built on r...

Question 7

The compound CFCl3 is used as a/an

Accepted Answer

A)  enzyme.
B)  anesthetic.
C)  gaseous fuel.
D)  coolant.
E)  CFC replacement.F) C) and D)
G) B) and C)

Question 8

The air at sea level is ~80% oxygen and ~20% nitrogen.

Accepted Answer

A) True 
 B)False

Question 9

How many different ways can a CO2 molecule vibrate?

Accepted Answer

A)  1
B)  2
C)  3
D)  4
E)  millionsF) None of the above
G) B) and C)

Question 10

What colors do excited oxygen atoms emit?

Accepted Answer

The answer of What colors do excited oxygen atoms emit?...

Question 11

Chlorofluorocarbons diffuse in the troposphere where they begin to decompose allowing the chlorine atoms to break down ozone.

Accepted Answer

A)  True
B)  FalseC) A) and B)
D) undefined

Exam 21: Environmental Chemistry

What is the cause of radon being detected in homes?

Correct Answer
verified
Homes are built on r...
View Answer

What colors do excited oxygen atoms emit?

Correct Answer
verified

Ozone

Correct Answer
verified

How many different ways can a CO₂ molecule vibrate?

Correct Answer
verified

Chlorofluorocarbons diffuse in the troposphere where they begin to decompose allowing the chlorine atoms to break down ozone.

Correct Answer
verified

Lightning,fires,and other atmospheric processes result in the formation of nitric acid,HNO₃,from atmospheric N₂,O₂,and H₂O.Write balanced chemical equations to represent the three reactions involved in the formation of HNO₃ by this route.

Correct Answer
verified
N₂ (g)+ O₂(g)→ 2NO(g),...
View Answer

The air at sea level is ~80% oxygen and ~20% nitrogen.

Correct Answer
verified

The compound CFCl₃ is used as a/an

Correct Answer
verified

The first "hole" in the ozone layer was found over which continent?

Correct Answer
verified

Choose the incorrect statement concerning radon gas.

Correct Answer
verified

What is the layer of the atmosphere called that is closest to the surface of the Earth and the thinnest layer of the atmosphere?

Correct Answer
verified

Exam 21: Environmental Chemistry

What is the cause of radon being detected in homes?

Correct AnswerverifiedHomes are built on r...View AnswerShow Answer

What colors do excited oxygen atoms emit?

Correct AnswerverifiedShow Answer

Ozone

Correct AnswerverifiedShow Answer

How many different ways can a CO2 molecule vibrate?

Correct AnswerverifiedShow Answer

Chlorofluorocarbons diffuse in the troposphere where they begin to decompose allowing the chlorine atoms to break down ozone.

Correct AnswerverifiedShow Answer

Lightning,fires,and other atmospheric processes result in the formation of nitric acid,HNO3,from atmospheric N2,O2,and H2O.Write balanced chemical equations to represent the three reactions involved in the formation of HNO3 by this route.

Correct AnswerverifiedN2 (g)+ O2(g)→ 2NO(g),...View AnswerShow Answer

The air at sea level is ~80% oxygen and ~20% nitrogen.

Correct AnswerverifiedShow Answer

The compound CFCl3 is used as a/an

Correct AnswerverifiedShow Answer

The first "hole" in the ozone layer was found over which continent?

Correct AnswerverifiedShow Answer

Choose the incorrect statement concerning radon gas.

Correct AnswerverifiedShow Answer

What is the layer of the atmosphere called that is closest to the surface of the Earth and the thinnest layer of the atmosphere?

Correct AnswerverifiedShow Answer

Correct Answer
verified
Homes are built on r...
View Answer

Correct Answer
verified

Correct Answer
verified

How many different ways can a CO₂ molecule vibrate?

Correct Answer
verified

Correct Answer
verified

Lightning,fires,and other atmospheric processes result in the formation of nitric acid,HNO₃,from atmospheric N₂,O₂,and H₂O.Write balanced chemical equations to represent the three reactions involved in the formation of HNO₃ by this route.

Correct Answer
verified
N₂ (g)+ O₂(g)→ 2NO(g),...
View Answer

Correct Answer
verified

The compound CFCl₃ is used as a/an

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified