Chapter 3 - forests II. car pooling rather than driving...

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Question 1 1 points Save Assuming we can isolate a small, finite number of atoms or molecules and weigh them, which would have the greatest mass (consult periodic table)?
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Question 2 1 points Save What is the molar mass of CO 2 ? Question 3 1 points Save Caffeine has the formula C 8 H 10 N 4 O 2 . How many molecules are in 10.0 g of pure caffeine? (The molar mass of C 8 H 10 N 4 O 2 is 194 g/mol. Avogadoro number is 6.0 x 10 23 ). Question 4 1 points Save Scientists have estimated the average global temperature over the last 160,000 years, based on ice core samples from Antarctica. What do they look at in these samples to make this
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Question 4 1 points Save estimation? Question 5 1 points Save How many grams of CO 2 are needed to have exactly 3.0 x 10 2 mol of CO 2 (1 mol = 44g)? Question 6 1 points Save Which process will help reduce CO 2 levels in the atmosphere? I. increase clear cutting of
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Unformatted text preview: forests II. car pooling rather than driving individual cars III. using more renewable energy sources, such as wind or solar power IV. generating more electricity with nuclear Question 6 1 points Save power Question 7 1 points Save Both the Clinton and G. W. Bush administrations have been unwilling to ratify the Kyoto Protocol. In addition to potential economic effects, what is another U.S. objection to the treaty? Question 8 1 points Save What feature makes both methane and carbon dioxide greenhouse Question 8 1 points Save gases? Question 9 1 points Save Given one mole of carbon dioxide, how many atoms of oxygen do you have? (Avogadro's number is 6.0 x 10 23 .) Question 10 1 points Save Which is a correct Lewis structure, shape, and bond angle for carbon dioxide? Question 10 1 points Save...
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This note was uploaded on 07/17/2010 for the course CHEMISTRY 101 taught by Professor Tang during the Spring '10 term at Sacread Heart University.

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Chapter 3 - forests II. car pooling rather than driving...

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