Exam I KEY - W09

Exam I KEY - W09 - Name_ Student ID Number_ Lab TA Name and...

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Name______________________________________ Student ID Number___________________________ Lab TA Name and Time_______________________ Winter 2009 - Enderle CHEMISTRY 2A Exam I Multiple Choice (circle one) Instructions: CLOSED BOOK EXAM ! No books, notes, or additional scrap paper are permitted. All information required is contained on the exam. Place all work in the space provided. If you require additional space, use the back of the exam. (1) Read each question carefully. (2) There is no partial credit for the problems in Part I and Part II. (3) The last page contains a periodic table and some useful information. You may remove this for easy access. (4) Graded exams will be returned in the laboratory sections next week. (5) If you finish early, RECHECK YOUR ANSWERS! U.C. Davis is an Honor Institution Possible Points Points 1–14. 42 points 15–17. 18 points 18–20. 20 points 21–22. 12 points 23. 6 points 24. 14 points Total Score (112) 1. A B C D E 2. A B C D E 3. A B C D E 4. A B C D E 5. A B C D E 6. A B C D E 7. A B C D E 8. A B C D E 9. A B C D E 10. A B C D E 11. A B C D E 12. A B C D E 13. A B C D E 14. A B C D E
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Exam I Page 2 of 9 Part I: Multiple Choice, Concepts Circle the correct answer here and on the cover – No partial credit (3 points each) 1. How many significant figures are in the number: 00.00200100? A. 4 B. 6 C. 8 D. 10 E. Infinite 2. Which of the following elements is a third period alkali earth? A. Na B. Mg C. Be D. Ca E. K 3. Which of the following aqueous compounds is a strong acid? A. HClO B. HClO 2 C. HClO 3 D. HClO 4 E. HClO 5 4. Adding water to a solution of 1.32 M acetic acid will not change which of the following? A. The moles of the solvent B. The molarity of the solution C. The volume of the solution D. The moles of acetic acid E. All of the above 5. Which of the following two characteristics could not describe an aqueous chemical compound? A. A weak acid and weak electrolyte B. A strong acid and weak electrolyte C. A strong acid and strong electrolyte D. A salt and strong electrolyte E. A strong base and strong electrolyte 6. Which of the following neutral elements could have 42 electrons and 100 neutrons? A.
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Exam I KEY - W09 - Name_ Student ID Number_ Lab TA Name and...

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