107E1A08key - Chemistry 107 Examination 1(A), October 11,...

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Chemistry 107 Examination 1(A), October 11, 2008 page 1 of 8 PRINT NAME______________________________ SIGNATURE_________________________ Last First Recitation Section_______ Recitation Instructor_________________________________ Check the time of meeting of your Rec/Lab section. If you do not correctly provide this information the return of your paper may be delayed. Monday afternoon ____ Tuesday afternoon ____ Tuesday evening ____ Wednesday afternoon ____ Thursday morning ____ Thursday afternoon ____ Friday afternoon ____ There are 2 questions in Part I and 17 multiple choice questions in Part II, in addition to one page of equations and a Periodic Table with constants, for a total of 8 pages . Be sure you have a complete copy before you begin. The backs of pages 3-8 can be used as scrap paper. Turn in pages 1 and 2. Part I. Answer each question in the space provided on the page. You must show your work for credit. Part II: For each question choose the one best answer. Indicate the letter corresponding to this answer in the proper space in the appropriate box on this page. It is best to use pencil and erase completely any answers you want to change. Questions with more than one answer marked will be graded as incorrect. Do not leave any answers blank - guess if you don't know. Part I 1. __________(7) 2. __________(8) Part II __________(85) Total __________(100) version A A B C D E
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Chemistry 107 Examination 1(A), October 11, 2008 page 2 of 8 3 x 4 x 5 x 6 x 7 x 8 x 9 x 10 x 11 x 12 x 13 x 14 x 15 x 16 x 17 x 18 x 19 x A B C D E Part I. You must show your work for partial credit. NAME______________________________ 1. (7 points) Balance the redox equation below in acidic solution as the net ionic equation: CrO 4 2– (aq) + NH 3 (aq) Cr 3+ (aq) + NO 2 1- (aq) 9 H + + 2 CrO 4 2– (aq) + NH 3 (aq) 2 Cr 3+ (aq) + NO 2 1- (aq) + 6 H 2 O 2. (8 points) Determine the number of grams of Ba
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This note was uploaded on 02/26/2010 for the course CHE 107 taught by Professor Keister during the Spring '07 term at SUNY Buffalo.

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107E1A08key - Chemistry 107 Examination 1(A), October 11,...

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