CHEM-353/553, Environmental Chemistry
Quiz 2, September 17, 2001

1. Draw electron-dot structures for the following or free radicals:
   1. CO₂ molecule
   2. O₂ molecule

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2. Which is a worse form of skin cancer, malignant melanoma or basal-cell carcinoma? Explain why one is worse than the other.

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3. At what time of the year does the ozone hole over the Antarctic appear?

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4. During the Antarctic winter, chlorine builds up over the south pole in the form of the two compounds __________ and __________.

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5. What is the wavelength range of UV-C radiation?

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6. Almost all skin cancer is caused by the __________ reigion of the ultraviolet spectrum.

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University of Wisconsin-Stout
Department of Chemistry
Jarvis Hall 303I Science Wing
Menomonie, WI 54751
(715)-232-2292
ondrusm@uwstout.edu