exam 1 key

exam 1 key - Name Student ID Number LAB Sec TA Lab day/time...

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Name Student ID Number LAB Sec. # _; TA: ; Lab day/time: Winter 2009 Dr. Keri Clemens CHEMISTRY 2B (Section D) ExamI Instructions: CLOSED BOOK EXAM! No books, notes, or additional scrap paper are permitted. All information required is contained on the exam. Place all work in the space provided. If you require additional space, use the back of the exam. A scientific calculator may be used (if it is a programmable calculator, its memory must be cleared before the exam). (1) Read each question carefully. (2) For Parts I and II, there is no partial credit given and only answers marked on this cover page will be graded. (3) The last page contains a periodic table and some useful information. You may remove it for easy access. (4) If you finish early, RECHECK YOUR ANSWERS! U.C. Davis is an Honor Institution Possible Points Points #1-12. (3 points each) /36 #13-18. (6 points each) /36 #19. (6 points) /6 #20. (10 points) /10 #21. (12 points) /12 #22. (8 points) /8 Total Score (108) /108 1. a b c e 2. a 3. a 4. r'a\ b c d e 5. a b @ d e 6. a b c dG) 7. ac dQ 8. a G)(i> d e 9. a bQ d e 10. a b G)d e 11. 0 b c d e 12. a b0 d e 1-12 totalpts: 13. a b @ d e 14. @ b c d e 15. a @ c d e 16. G) b c d e 17. a b c d 18. a <f)c d e 13-18 total.'JI.:
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J Name: Exam II (Page 2 of 10) Part I: Multiple Choice, Concepts (3 points each) Select the best answer and enter your choice on the cover sheet - No partial credit 1. (3 pts) In which of the following is no work done? (a) a force is applied to an object to move it a distance (b) a gas is compressed (c) a gas is expanded (d) A reaction where no gases are formed or consumed (e) none of these 2. (3 pts) What is the strongest type of intermolecular forces experienced by H2S? (a) Van der Waals or dispersion forces (b) DiPole dipole forces (c) Hydrogen bonds (d) Ion-Ion forces (e) Polar covalent bonds 3. (3 pts) In which of the following, is the substance with the higher vapor pressure listed first? e (a) CCI4, CF4 (b) C7H16,CsH12 (c) H20, H2S (d) CH3CH20H, CH3-O-CH3 (e) Br2, h 4. (3 pts) Lead, water, sulfur and arsenic have specific heats of 0.128, 4.18, 0.706, and 0.329 J/gOC,respectively. Which of the following would need the smallest quantity of heat to change the temperature of 5g by lOOC? (a) Lead (b) Water (c) Sulfur (d) Arsenic (e) all the metals required the same amount of heat
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Name: Exam II (Page 3 of 10) 5. (3 pts) When an egg whose shell has been dissolved is placed in a concentrated sugar solution, (like in class) (a) the solution is hypotonic and water flows out of the egg
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This note was uploaded on 05/22/2011 for the course CHEM 2B taught by Professor Clemens during the Fall '08 term at UC Davis.

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exam 1 key - Name Student ID Number LAB Sec TA Lab day/time...

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