Chem 105 Exam 1 (Fall 2007)

Chem 105 Exam 1 (Fall 2007) - Name: _ 105073E1 Form: 0...

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Name: ________________________________ 105073E1 Form: 0 Version: 0 1. Which of the following is a chemical change? i. Pure, solid carbon reacts with pure, solid sulfur to produce liquid carbon disulfide. ii. Liquid water freezes to from solid water. iii. 100 moles of carbon atoms are mixed with 200 moles of sulfur atoms to from a homogeneous mixture of carbon and sulfur atoms. Only i All ii and iii i and ii None A. B. C. D. E. 2. The density of mercury is 13.53 g/cm 3 . What is the volume of 1.0kg of mercury? 73.9 cm 3 7.39(10 -2 ) cm 3 1.35(10 4 ) cm 3 13.5 cm 3 1.35(10 -2 ) cm 3 A. B. C. D. E. 3. What is the result of the following to the correct number of significant figures? 5.729 + 8.61 = ? 14.34 14.339 14.3 1.43x 10 1 14.33 A. B. C. D. E. 4. What is the result of the following calculation to the correct number of significant figures and in correct scientific notation? 3.75 / (8.2(10 -11 ))? 4.6(10 10 ) 3.1(10 -10 ) 3.08(10 -10 ) 4.57(10 10 ) 2.2(10 -11 ) A. B. C. D. E. Sunday, September 16, 2007 10:16:59 AM 1
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105073E1 5. What is the charge of the common monatomic ion in each of the following groups in the periodic table? Halogens Alkali Metals Alkaline Earth Metals -1 +1 +2 -1 +2 +1 -2 +2 +2 +1 +2 -1 +1 +1 +1 A. B.
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This note was uploaded on 06/24/2008 for the course CHEM 105 taught by Professor Wherland during the Fall '07 term at Washington State University .

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Chem 105 Exam 1 (Fall 2007) - Name: _ 105073E1 Form: 0...

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