WORKSHT_Sp08 - LECTURE WORKSHEETS Lecture Worksheets The...

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LECTURE WORKSHEETS Lecture Worksheets The purpose of the lecture worksheets is to make you aware of some of the basics that will be covered in Chem 110 lecture, in the hopes that you will get more out of lecture through this kind of preparation. It can also serve as a guide in reading the text, increasing your understanding of what you read. Lecture Worksheets are to be turned in at the beginning of the Chem 110 lectures. There will be a box in the front of the lecture hall marked: Chem 108 Lecture Worksheets . Early lecture worksheets will be accepted. Anything past the indicated due date (the date of the Chem 110 lecture to which it corresponds) will not receive credit! In general, Lecture Worksheets will be graded based on effort rather than results, i.e., if the assignment is done on time and with reasonable care, full credit will be given, even if there are some mistakes in the work. PLEASE: do not disturb the lecture to turn in your Lecture Worksheet. Be considerate of your peers and Chem 110 lecturer. Turn in the worksheets prior to the beginning of lecture or immediately afterward. THANK YOU!
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Chem 108 Spring Lecture Worksheet BLB 10 th Ed. Lecture Worksheet 1 Name ___________________________ (Chapter 1 and 2.1-4) Chem 108 Section #_______ Due: Weds. Jan. 16 1. Define the following: (a) mixture (b) element (c) compound 2. (a) Define physical and chemical property and give an example of each. 3. (a) Define physical and chemical change and give an example of each. 4. Using scientific notation, write the following numbers in meters: a) 1 km c) 200 μ m b) 26 cm d) 760 nm 5. How many significant figures are in the following numbers: a) 10.06 b) 0.00057 c) 0.4500 6. Describe how you deal with significant figures in: (a) multiplication/division problems (b) addition/subtraction problems. Chapter 2.1-4 1. What is an atom according to Dalton’s atomic theory? 2. What is the difference between Dalton’s view of an atom and the modern view? (What are the names of the subatomic particles in an atom and where are they?) 3. (a) What is the difference between the mass number and the atomic number? (b) In the symbol, 12 6 C what does the number 12 tell you? What does the number 6 tell you?
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Chem 108 Spring Lecture Worksheet BLB 10 th Ed. Lecture Worksheet 2 Name ___________________________ (Chapter 5.1-3, 6.1-3) Chem 108 Section # _______ Due: Fri. Jan. 18 Chapter 5.1-3 1. For a chemical reaction in a laboratory, what is the system? What are the surroundings? 2. Define the following: (a) heat (b) State function (c) Enthalpy Chapter 6.1-3 1. What is the value of the speed of light (include units)? 2. Give the relationship (an equation) between the speed of light, c, wavelength, λ , and frequency, ν . 3. What is a photon? How do we describe the energy of a photon? 4. What is the difference between a continuous spectrum and a line spectrum? 5. Write the equation that predicts the frequency of absorbed or emitted light when an electron in a hydrogen atom moves between energy levels?
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Chem 108 Spring Lecture Worksheet BLB 10 th Ed.
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