exam_2__w2008

exam_2__w2008 - Name Winter 2008 EXAM 2 (Page 1 of 10) Last...

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Unformatted text preview: Name Winter 2008 EXAM 2 (Page 1 of 10) Last Name _____________________________ First Name _________________ Lab Sec. # ____; TA : _________________________; Lab day/time : ___________ Andreas Toupadakis, Ph.D. Winter 2008 CHEMISTRY 2A Section B Good luck EXAM 2 ( circle one ) 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). This exam has 10 pages. (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 2 pages contain a periodic table and some useful information. You may remove them for easy access. (4) If you finish early, RECHECK YOUR ANSWERS! (5) Apply significant figures rules for Part III for credit . U.C. Davis is an Honor Institution Possible Points Points # 19 (4 points each) / 36 # 10-15 (6 points each) / 36 # 16 (16 points) / 16 # 17 (12 points) / 12 Total Score (100) / 100 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 1-9 total points: 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 15. A B C D E 10-15 total points: Multiple Choice Name Winter 2008 EXAM 2 (Page 2 of 10) Part I: Multiple Choice, Concepts (4 points each) Select the best answer and enter your choice on the cover sheet No partial credit 1) What are the spectator ions in the ionic equation for the combination of Li 2 CO 3 (aq) and Ba(OH) 2 (aq)? A. CO 3 2- and OH- B. Li + and OH- C. Li + and Ba 2+ D. Ba 2+ and OH- E. Ba 2+ and CO 3 2- 2) Identify the Bronsted acid in the following equation: H 2 SO 4 (aq) + 2 NH 3 (aq) (NH 4 ) 2 SO 4 (aq) A. H 2 SO 4 B. NH 3 C. H 2 O D. (NH 4 ) 2 SO 4 E. This equation does not contain a Bronsted acid 3) Determine the oxidation number of sulfur in each of the following species: H 2 S, HSO 3- , SCl 2 , andS 8 . A. +2, +6, -2, +1/4 B. -2, +3, +2, C. -2, +5, +2, -1/4 D. -1, +4, +2, 0 E. -2, +4, +2, 0 4) Which of the following conditions cause deviation from ideal behavior?...
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exam_2__w2008 - Name Winter 2008 EXAM 2 (Page 1 of 10) Last...

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