2008Test1ReviewKey

2008Test1ReviewKey - Name: _ Class Number Key Midterm I...

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page 1 of 8 Name: _____________________________________ Class Number Midterm I Review , Spring 2008 Chemistry 2210 Professor S. A. Miller, February 5, 2008 Key
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page 2 of 8 Problem Number Possible Score Your Score 1 72 2 24 3 27 4 15 5 12 Total 150 Last Name: _________________ First Name: _______________ Signature: ___________________________________________
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1. (72 pts.; 6 pts. each) Draw the following. CHM 2210 Midterm I Review page 3 of 8 (a) A Lewis structure for diazomethane, CH 2 NN. (Lines are OK for bonds, but use dots for lone pairs.) C H N N (b) Two important resonance forms of the conjugate base of acetone. (c) An organic compound with three chlorines, but zero molecular dipole moment. (d) The pi bonding molecular orbitals of carbon dioxide. Cl acetone O C H O O H H H H H O H H H H H Cl Cl others. .. O -H Cl Cl Cl
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1. (continued) CHM 2210 Midterm I Review page 4 of 8 (e) A line angle structure of trans -CH 3 CH 2 CHCHCCCH 2 CH 2 CHO. (f) A line angle structure of (CH 3 ) 3 CCF 3 AND its molecular dipole. (g) A dipole-dipole interaction between two molecules of formaldehyde. (h) Three stereoisomers of 1,2-dimethylcyclopropane O H CF 3 O H H δ + δ - O H H δ + δ -
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CHM 2210 Midterm I Review page 5 of 8 (i) A line angle formula for cis , trans -1,2,3-trimethylcyclobutane (j) A hydrocarbon with only tertiary carbons. (k) A line angle formula for spiro[2.2]pentane.
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2008Test1ReviewKey - Name: _ Class Number Key Midterm I...

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