CHEM 2B Practice Exam II - Winter07

CHEM 2B Practice Exam II - Winter07 - Dr Bryan Enderle Name...

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Name______________________________________________ Student ID Number___________________________________ LAB Sec. # ___; TA: __________; Lab day/time: __________ Dr. Bryan Enderle Winter 2007 CHEMISTRY 2B (Section A) Exam II 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 two pages contain a periodic table and some useful information. You may remove them for easy access. (4) If you finish early, RECHECK YOUR ANSWERS! U.C. Davis is an Honor Institution Possible Points Points #1–14. (2 points each) / 28 #15-22. (4 points each) / 32 #23 (18 points) / 18 #24 (18 points) / 18 Free points (4 points) 4 / 4 Total Score (100) / 100 Multiple Choice (circle one) 1. a b c d e 2. a b c d e 3. a b c d e 4. a b c d e 5. a b c d e 6. a b c d e 7. a b c d e 8. a b c d e 9. a b c d e 10. a b c d e 11. a b c d e 12. a b c d e 13. a b c d e 14. a b c d e 1-14 total pts: 15. a b c d e 16. a b c d e 17. a b c d e 18. a b c d e 19. a b c d e 20. a b c d e 21. a b c d e 22. a b c d e 15-22 total pts:
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Name: ____________________________________ Exam II (Page 2 of 9) Part I: Multiple Choice, Concepts (2 points each) Select the BEST answer and enter your choice ON THE COVER SHEET , No partial credit 1. (2 pts) In order to lower the melting point of a saltwater solution, one must (a) Add more water (b) Remove more water (c) Decrease the solute concentration (d) Add more salt (e) None of the above 2. (2 pts) Adding more solvent to a salt solution will cause (a) The boiling point to increase (b) The freezing point to decrease (c) The boiling point to decrease (d) Both (a) and (b) (e) No change in the boiling point or freezing point
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This note was uploaded on 10/22/2010 for the course CHE CHE 2B taught by Professor Toupadakis during the Fall '09 term at UC Davis.

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CHEM 2B Practice Exam II - Winter07 - Dr Bryan Enderle Name...

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