Chapter 20 – Chemistry in the Atmosphere
Chapter 20
Chemistry in the Atmosphere
1.
The regions of the earth’s atmosphere listed from lowest altitude to highest altitude are:
2. The most prevalent noble gas in our atmosphere is
Chapter 20 – Chemistry in the Atmosphere
3.
The CO2 content of Earth’s atmosphere is approximately
Chapter 20 – Chemistry in the Atmosphere
4. Which one of the following reactions is an example of nitrogen fixation?
Chapter 20 – Chemistry in the Atmosphere
5.
One of the steps in the fixation of nitrogen by lightening is given below.
2NO2(g) + H2O(l) → HNO2(aq) + HNO3(aq)
In this reaction, is the element nitrogen oxidized or reduced?
6.
Which of the following reactions associated with nitrogen fixation by lightening is a disproportionation reaction?
I. N2(g) + O2(g) → 2NO(g)
II. 2NO(g) + O2(g) → 2NO2(g)
III. 2NO2(g) + H2O(l) → HNO2(aq) + HNO3(aq)
Chapter 20 – Chemistry in the Atmosphere
7. Which region of the atmosphere contains the ozone layer?
8. The ozone layer in the atmosphere protects animals and plants from
9. Which of the following is a promising candidate as an alternative to using
chlorofluorocarbons as a coolant?
Chapter 20 – Chemistry in the Atmosphere
10. Select all of the following that are capable of destroying stratospheric ozone through
chemical means:
I. CF2Cl2
II. NO
III. CO2
11.
The mechanism for the decomposition of ozone in the presence of a reactive chlorine atom is shown below. Which species
functions as a catalyst?
O3 + (UV light) → O + O2
Cl + O3 → ClO + O2
ClO + O → Cl + O2
Chapter 20 – Chemistry in the Atmosphere
12.
The mechanism for the decomposition of ozone in the presence of a reactive chlorine atom is shown below. Which of the
following species is an intermediate?
O3 + (UV light) → O + O2
Cl + O3 → ClO + O2
ClO + O → Cl + O2
13. Determine two effects expected from the depletion of the ozone layer.
1) asthma 2) lung cancer 3) skin cancer 4) genetic mutations 5) emphysema
Chapter 20 – Chemistry in the Atmosphere
14. Which statement about ozone and the ozone layer is true?
15. The first “hole” in the ozone layer was found over which continent?
16. The compound CFCl3 is used as a/an
Chapter 20 – Chemistry in the Atmosphere
17. Which of the following cannot be plausibly linked to the destruction of the ozone layer?
18. The normal process occurring on Earth that warms its surface and the lower atmosphere is
called
19. Heat is radiated from Earth to space predominately in the form of:
Chapter 20 – Chemistry in the Atmosphere
20. In order for a gas to be a “greenhouse gas” it must
21. Which one of the following is not a greenhouse gas?
22. Which one of the following can function as a greenhouse gas?
Chapter 20 – Chemistry in the Atmosphere
23. An increase in the amount of particulate matter (dust and smoke) in the atmosphere may
result in cooler world temperatures because
24. Which one of the following would slow the rate of increase of atmospheric CO2?
25. Which of the following sources does NOT contribute significantly to the greenhouse
effect?
Chapter 20 – Chemistry in the Atmosphere
26. Which of the following would NOT help reduce the amount of CO2 introduced into the
atmosphere?
27. List the following greenhouse gases in order of their overall magnitude of contribution to
global warming: N2O, CFCs, CO2, CH4.
Chapter 20 – Chemistry in the Atmosphere
28. Acid rain is less of a threat to lakes and streams in areas where the bedrock is limestone
(CaCO3). Which of the following represents a balanced equation for the neutralization of acid
by limestone?