Posted: December 7th, 2015

Chemistry Questions

Chemistry Questions

(1)  Briefly explain the similarities and differences between nitric oxide oxidation and sulfur dioxide oxidation in the troposphere.  (10 points possible)
(2)  Do the two reactions you discussed occur in the stratosphere? Explain why or why not. (10 points possible)
(3)  One can argue that both nitric oxide and sulfur dioxide are natural, and hence, harmless. Would you agree or disagree with this statement?  Explain using the concept of equilibrium and biogeochemical cycles, and discuss their effects on natural waters. (20 points possible)
(4)  In one sentence, state the difference between past climate change and present climate change, providing both evidence and logic.  (10 points possible)
(5)  Name the top five greenhouse gases of concern in the order of extra warming they have produced, starting with the greenhouse gases most responsible for extra warming. (15 points possible)
(6) A student states that sulfates are bad for our planet because they warm the planet. Now that you have a much greater understanding of the chemistry of various molecules, please help enlighten this student. (15 points possible)
(7) Is the six-membered ring system in benzene particularly stable or unstable?   Explain using chemical concepts we have discussed and read about.  (10 points possible)
(8) What is the main use for the compound CCl2=CCl2? What two names are used for this compound? Who was the first to synthesize and describe the characteristics of this compound, when did that occur (the year), and what properties of this compound led to its eventual widespread use? (10 points possible)

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