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ch301_06_exam1.1 1 - 1 CH301 54590 Fall 2006 Professor...

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CH301 54590 Fall 2006 Professor Campion Exam I 1. Classify the following substances as heterogeneous mixtures, homogeneous mixtures, compounds or elements. (5 pts) a) Silicon element b) Silicon dioxide (compound) c) Milk (homogenous mixture) d) Dirt (heterogenous mixture) 2. Answer each of the following: (15 pts) a) State the law of conservation of mass in your own words. b) Which of Dalton’s postulates is most clearly related to this law and in what way? c) Which is the more restrictive statement, the Law of Conservation of Mass or Dalton’s postulate and why? d) Are these statements universally true and, if not, under what circumstances. 1
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3. The Thompson cathode ray tube and Millikan oil drop experiments characterized a a new fundamental particle. (15 pts) a) Describe the basic set up of each experiment, including a simple sketch. It is not necessary to identify every element or to write detailed equations, just provide enough information that we know that you understand the basic physics. b)
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This note was uploaded on 03/20/2008 for the course CH 301H taught by Professor Campion during the Fall '07 term at University of Texas.

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ch301_06_exam1.1 1 - 1 CH301 54590 Fall 2006 Professor...

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