Exam 1-2.4 - I. Boiling water is an endothermic process....

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EXAM I Sample Exam 1-2 Dr. V. Williamson © Vickie M. Williamson 2007, All Rights Reserved 3 15. What is the Fahrenheit temperature that corresponds to 0 K? A. —549°F B. —523°F C. —434°F D. —459°F E. —120°F 16. A compound containing only carbon, hydrogen, and oxygen is analyzed and found to be 70.6% carbon, 5.9% hydrogen, and 23.5% oxygen. The molecular weight of the compound is 136. What is the molecular formula? A. C 8 H 4 0 B. C 4 H 4 0 C. C 9 H 12 0 3 D. C 8 H 8 0 2 E. C 3 H 4 0 17. (4PTS) Which Of the following is (are) TRUE?
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Unformatted text preview: I. Boiling water is an endothermic process. II. 20.0 grams of NaOH represents 0.500 moles of NaOH. III. Burning a candle results in a chemical change (chemical reaction). IV. The fact that magnesium is a grey metal is a physical property. A. I, IV B. III, IV C. II, III D. I, II E. all are true Key question 6pts each 1 C 2 B 3 E (A=3pts) 4 C 5 E (A, C =3pts) 6 A 7 B 8 C 9 A 10 A (C,D =3pts) 11 C 12 E (B=3pts) 13 B 14 A 15 D 16 D (B=3pts) 4 pts 17 E...
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