Chem012Summer 2005 - Chemistry 12 Exam I Form A July 8,...

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Chemistry 12 Name _______________________ Exam I Form A Section _______________________ July 8, 2005 Student No._______________________ IMPORTANT : On the scantron (answer sheet), you MUST clearly fill your name , your student number , section number , and test form (white cover = test form A; yellow cover = test form B). Use a #2 pencil. There are 29 questions on this exam. Check that you have done all of the problems and filled in the first 29 bubbles on the scantron. Your score will be reported in percents (max 100%). Exam policy Calculators with text-programmable memory are not allowed. Relevant data and formulas, including the periodic table, are attached at the end of this exam. Your grade will be based only on what is on the scantron form. The answer key will be posted on the web after the exam (under "News"). Hints As you read the question, underline or circle key words to highlight them for yourself. Avoid errors from "mis- reading" the question. Pay attention to units and magnitudes (decimal places) of numbers obtained from calculations. There is no penalty for guessing.
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Chemistry 12 Exam 1 --------------------------------------------------------------------------------------------------------------------- 1. A cube of an unknown metal measures 1.61 mm on one side. The mass of the cube is 36mg.Which of the following is most likely the unknown metal? Metal Density (g/cm 3 ) rhodium 12.4 copper 8.96 niobium 8.57 vanadium 6.11 zirconium 6.51 (Note: since this is experimental data. Do not expect an “exact” result but rather one that is correct within the accuracy as given by the significant figures.) A. copper B. rhodium C. niobium D. vanadium E. zirconium 2.
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This note was uploaded on 03/02/2008 for the course CHEM 012 taught by Professor Staff during the Spring '08 term at Pennsylvania State University, University Park.

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Chem012Summer 2005 - Chemistry 12 Exam I Form A July 8,...

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