Exam 1 CH101 Fall 2008 Form A v2

Exam 1 CH101 Fall 2008 Form A v2 - Name _ ID#_ Section # _...

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Name ______________________________ ID#_______________________ Section # ________ CH 101 EXAM 1 Fall 2008 - Form A Fill in your name, ID#, and section on this test booklet. Fill in and bubble in your name, ID#, and section on the scantron form. For question #60 mark A. Mark the best answer after reading all possible choices. Use a #2 pencil and make clean erasures to insure proper scoring. When finished, turn in your scantron sheet and show this booklet and your CUID to the proctor. Good Luck! 1. What is the sum of the coefficients when the following equation is balanced using the lowest whole numbered coefficients? ___B 2 O 3 (s) + ___HF (l) ___BF 3 (g) + ___H 2 O (l) A. 8 B. 10 C. 12 D. 15 2. What is the position of the right end of the grey bar pictured below? A. 8 m D. 7.96 m B. 8.0 m E. 7.960 m C. 7.9 m 3. Millikan’s oil drop experiment demonstrated that… A. electrons are particles with a charge. B. the mass of an atom is found largely in a small dense nucleus. C. protons and neutrons have nearly the same mass. D. all elements are comprised of atoms. 4. Which species has 22 protons, 26 neutrons and 20 electrons? A. Ti 2+ D. Fe 6+ B. Ca 2+ E. Fe 4+ C. Ca 4+ 5. Consider the reaction: 3C (s) + O 2 (g) C 3 O 2 (g) 12.0 moles of C (s) react in excess of O 2 (g) . If 3.0 moles of C 3 O 2 (g) are collected at the end, what was the % yield of this reaction? A. 15%
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This note was uploaded on 04/03/2009 for the course CH 102 taught by Professor Staff during the Spring '08 term at Clemson.

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Exam 1 CH101 Fall 2008 Form A v2 - Name _ ID#_ Section # _...

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