Think you’ve got your head wrapped around Environmental Chemistry? Put your knowledge to
the test. Good luck — the Stickman is counting on you!
Q. Which of the following is a carbon sink?
I. Ocean
II. Decomposition
III. Photosynthesis
I only
II only
III only
II and III only
I, II, and III
Q. Which of the following best describes the pattern of isotopic ratios of O-18 to O-16 by latitude?
Isotopic ratios of O-18 to O-16 decrease as you travel west across the United States.
Isotopic ratios of O-18 to O-16 increase as you travel west across the United States.
Isotopic ratios of O-18 to O-16 decrease as you travel from the equator to the poles.
Isotopic ratios of O-18 to O-16 increase as you travel from the equators to the poles.
Isotopic ratios of O-18 to O-16 show no pattern related to latitude.
Q. If the following reaction were to occur in the soil, what effect would it have on pH?
Na2CO3 + H20 → 2Na+ + HCO3- + OH-
The pH would remain the same.
The pH would decrease.
The pH would increase.
The pH would decrease and then increase.
This reaction would have no effect on pH.
Q. The equation below shows what process?
Ca2+ + Clay-K2 → 2K+ + Clay-Ca
Anion exchange
Cation exchange
Oxidation of the soil
Calcification
Potassification
Q. What is the primary mechanism by which greenhouse gases with more than one hydrogen atom are removed from the atmosphere?
Reactions with H+
Photochemical reactions by solar radiation < 240nm
Reactions with OH radicals
Reactions with tropospheric ozone
Photochemical reactions by solar radiation > 240nm
Q. Which of the following reactions produces the species that gives smog its brown coloration?
2NO + O2 → 2NO2
3NO2 + H2O → 2 HNO3 + NO
COS + hv → S + CO
N2+ O2 → 2NO
Cl + O3 → ClO + O2
Q. As the atmospheric concentration of carbon dioxide increases, what is likely to happen to oceanic pH and the amount of calcium carbonate available to marine calcifiers?
pH will increase and the amount of calcium carbonate will also increase
pH will increase and the amount of calcium carbonate will decrease
pH will decrease and the amount of calcium carbonate will increase
pH will decrease and the amount of calcium carbonate will decrease
pH and calcium carbonate levels will remain the same
Q. What effect(s) might acidic rain have on soil?
I. The production of PANs
II. The mobilization of aluminum and other heavy metals
III. The leaching of nutrients like calcium and phosphorous
I and II only
II only
III only
II and III only
I, II, and III
Q. Which of the following describes an effect of ocean acidification?
An increase in oceanic pH.
A stabilization of oceanic pH.
Decreased calcification rates for some marine calcifiers.
Increasing ocean temperatures.
Decreasing ocean temperatures.
Q. What mass of FeS2 is required to produce 301.5g of sulfuric acid?
4FeS2 + 15O2 + 8H20 → 2Fe2O3 + 8H2SO4
534.1 g
1280 g
1068 g
1920 g
2560 g