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spring09 140A midterm

spring09 140A midterm - CHEMISTRY 140A NAME(please print...

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CHEMISTRY 140A NAME (please print) M IDTERM EXAM (V&S C P 1-4) FIRST LAST M AY 1, 2009 SIGNATURE ID NUMBER LAST NAME OF PERSON SEATED TO YOUR RIGHT : LAST NAME OF PERSON SEATED TO YOUR LEFT : DO NOT OPEN THE EXAM UNTIL YOU ARE TOLD TO DO SO . Please sign your name on the top of all pages. No points will be given for work on unsigned pages. Please check that you have 8 pages (including this one; page 8 is for your scratch work). - Answer only in the space provided. Do not write answers on the back of a page or on page 8. _____________________________________ Question Points Score _____________________________________ 1. 45 _____ 2. 35 _____ 3. 45 _____ 4. 35 _____ 5. 40 _____ _____________________________________ Total 200 _____ _____________________________________ H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
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NAME:________________________________ 2 1a. ( 10 pts ) In the boxes provided, draw the best Lewis structure for compounds represented by the condensed formulas: CH 3 CHS ( I ) and CH 2 BrCHNN ( II ). You need not show three-dimensional (3-D) structures. I II 1b. ( 10 pts ) In the boxes labeled A and B , provide clear 3-D Lewis structures for I and II , respectively. A B 1c. ( 10 pts ) In the box labeled C provide a clear 3-D structure for a conformational isomer of your structure in box A . In box D
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  • Spring '08
  • SCHROEDER
  • pts, Conformational isomerism, Chemical bond, Ti V Cr Mn Fe Co Ni Cu Zn Ga Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Ba La Hf

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