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SS06 MT2 Key - CHEMISTRY 140A EXAM 2 NAME(please print...

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CHEMISTRY 140A NAME (please print) EXAM 2 FIRST LAST J ULY 31, 2006 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 pages 1 through 6. Please check that you have 7 pages (including this one; page 7 is blank for your scratch work). - Answer only in the space provided. Do not write answers on the back of a page. _____________________________________ Question Points Score _____________________________________ 1. 20 _____ 2. 20 _____ 3. 20 _____ 4. 20 _____ 5. 20 _____ _____________________________________ Total 100 _____ _____________________________________ 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 1. (20 pts) Provide the requested three dimensional ( 3-D ) structures for each of the following: i) A (3-D representation of a) tetracyclic compound containing six ring-fusion carbons. (Hint: one example of this type of structure is found in a prominent class of biologically important molecules) [Cp 4] etc ii) Two compounds which are diastereomers of one another at low temperature but identical at high temperature. [Cp 4,5]
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