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Past Exam for CHEM 135 - GEN CHEM FOR ENGINEERS with DeVoe at Maryland (UMD)

Exam Information

Material Type:Exam 2
Professor:DeVoe
Class:CHEM 135 - GEN CHEM FOR ENGINEERS
Subject:Chemistry
University:University of Maryland
Term:Spring 1999
Keywords:
  • Sigma Bonds
  • Nonelectrolyte
  • The Newspaper
  • Hypothetical
  • Sublimation
  • Precipitate
  • Final Answers
  • Sp3 Hybridization
  • Spontaneous
  • Unsaturated
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Sample Document Text

CHEM 133 (Prof. DeVoe) YOUR NAME (printed) Exam 2 Version A October 27, 1999 Circle the name of your T A: David Kedar Natalia Okan Rich Scott Seung This exam has a total of 100 points. Please make sure you have all five pages. Do not write in this space 1-12 __ /36 13 /10 14 __ /3 15 112 16 /3 17 __ /6 18 110 19 __ 110 20. __ 110 TOTAL ____ 11 00 PART I. Twelve multiple-choice que~tions (3 pts each, 36 pts total). Write the letter (A., B, etc.) of the one best answer for each question on the line at the right. 1. Which one of the following molecules has a dipole moment? A) BF3 B) CO 2 C) CH 4 D) Br2 E) H 2 S 2. The angles between bonds m a molecule with a trigonal bipyramidal geometry are A) 90 and 180 0 B) 90 and 120 C) 120 only D) 180 0 only E) 109.5 0 3. The angle between orbitals with sp3 hybridization is A) 90 B) 109.5 C) 120 D) 180 4. What hybridization is fredicted for carbon (the central atom) in the O=C=O molecule? A) sp B) sp2 C) sp D) sp3...

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