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Past Exam for CHEM 131 - CHEM FUNDAMENTALS I at Maryland (UMD)

Exam Information

Material Type:Exam 3
Professor:Staff
Class:CHEM 131 - CHEM FUNDAMENTALS I
Subject:Chemistry
University:University of Maryland
Term:Fall 1998
Keywords:
  • Endothermic
  • Dissolution
  • Vaporization
  • Useful Information
  • Arrangement
  • Temperature
  • Sublimation
  • Final Answers
  • Atmospheric Pressure
  • Redox Reaction
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Sample Document Text

~HEM 103, Section 33 (Devoe)(9YOUR NAME (printed) ______ _ Exam 3 Version A December 2, 1998 Circle the name of your T A: A vanti Jin Kedar Phil Priya Sasmit Scott This exam has a total of 100 points. Please make sure you have all fiv~ pages. Do not write in this space 1-10 __ ,/20 11. __ 110 12. _~110 13. __ ,/4 14. ____ /8 15. ____ 112 16. __ 112 17. __ ./8 18. __ ./8 19. __ ./8 TOTAL ___ 1100 (Possibly) useful information: 1 atm = 760 mmHg ::: 1.013 25 x 10 5 Pa R = 0.08206 L atmlK mol 0.00 c :: 273.15 K N A == 6.022 X 10 23 mol- 1 PART I. Ten multiple-choice questions (2 pts each, 20 pts total). Write the letter (A, B, etc.) of the one best answer for each question on the line at the right. 1. The angle between two of the C--H bonds in the CH 4 molecule is A) 30 B) 90 C) 109.5 D) 120 E) 180 2. If an atom uses sp2 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 gas, the proces...

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