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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:Fall 1998
Keywords:
  • Nonelectrolyte
  • Dissolution
  • Temperature
  • Semipermeable Membrane
  • Point Elevation
  • Vaporization
  • Dilute Solution
  • Sublimation
  • Precipitate
  • Final Answers
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Sample Document Text

,"" -. CHEM 133 (Prof. DeVoe) YOUR NAME (printed) _. ______ . Exam 2 Version B October 30, 1998 Circle the name of your T A: Georgette Guru Jen Lei Lubna :Matt Paul This exam has a total of 100 points. Please make sure you have all five pages. Do not write in this space 1-11 __ /22 12. __ /12 13. __ 124 14 .. __ /6 15. __ /12 16. __ 112 17. __ 112 TOTAL _____ /100 PART I. Eleven multiple-choice questions (2 pts each, 22 pts total). Write the l~~er (A, B, etc.) of the one best answer for each question on the line at the right. 1. The angle between two of the B-F bonds in the BF3 molecule is A) 30 B) 90 C) 109.5 D) 120 E) 180 2. If an atom uses sp3 hybrid orbitals to form bonds, the angle between the bonds is A) 90 B) 109.5 C) 120 D) 180 3. When a solid changes to a liquid, the process is called A) evaporation B) sublimation C) dissolution D) vaporization E) fusion 4. Which one of the following substances has strong hydrogen bonds in its liquid state? A) CH 4 B) S...

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