DETERMINATION OF % COMPOSITION OF PENNIES USING REDOX AND DOUBLE DISPLACEMENT (PRECIPITATION) REACTIONS Pre- Lab 8 Objective: The purpose of this experiment is to determine the percent composition of pennies using oxidation-reduction and double displacement reactions as well as titration techniques. We will take a post 1982 penny and place in a strong acid dissolving the zinc core and leaving behind the copper coating. We will figure out the percent composition from the mass of copper and zinc using
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terms of warfare in the 20th century‚ a good definition and the one that will be used for this paper defines strategy as “the development‚ intellectual mastery‚ and utilization of all of the state’s resources for the purpose of implementing its policy in war.” This definition is used because it covers the aspects of total war‚ which the Second World War was. The interwar period‚ or the two decades of uneasy peace that separated the First and Second World Wars‚ saw three major thinkers emerge that had
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Characteristics of Romantic Period * Rachmaninoff Piano concerto No.2 1stmovement Sergei Rachmaninoff’s piano concerto No.2 is composed in 1900 at the end of the Romantic period emphasizing anti-modernism and representing the older Romantic tradition. The first movement is in sonata-allegro form‚ which is exposition‚ development‚ Recapitulation and Coda‚ preserving and extending the formal structure from the Classical period. The piece is very emotional and expressive‚ containing a lot
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Edcelyn M. 11280190 MADEPOL ‘Development’ is a concept which is contested both theoretically and politically‚ and is inherently both complex and ambiguous. (Sumner and Tribe‚ 2008) The Development of Development The issue on how to achieve development had gained a huge arena of talk on the development field but it is not alone in the limelight‚ even the concept of ‘development’ had gained many significant issues and changes‚ as well. Defining ‘development’ from the beginning is a debate
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ESCI 1102 Lab 8 Population Change Directions: Listed below are this Learning Module lab questions to answer. When completed‚ upload this file back to the Lab dropbox (where you downloaded in the first place). FYI: I really like it when the answers are in a different format/color than the questions. It helps when grading. Part 1. Population Biology is an online virtual lab that will illustrate how competition affects population growth. Follow the instructions given. Two species of unicellular
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Assignment 8 (24 points) Assignment 8: The Business World Instructions Save this file in your course folder‚ and name it with Assignment‚ the section number‚ and your first initial and last name. For example‚ Jessie Robinson’s assignment for Section 1 would be named Assignment1JRobinson. Type the answers to the assignment questions below. Use complete sentences unless the question says otherwise. You will have more than one day to complete an assignment. At the end of each day‚ be sure to save
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NH3‚ CH3Cl CHEM 331 – 2014 Dr. Roland Roesler 8-1 Symmetry: Character Tables BF3‚ CO32ˉ 2C3 stands for C31 and C32. C33 = E. The first column provides a list of symmetry labels corresponding to irreducible representations: A and B indicate non-degenerate A indicates symmetric with respect to rotation about the principal axis B indicates anti-symmetric with respect to rotation about the principal axis CHEM 331 – 2014 Dr. Roland Roesler 8-2 Symmetry: Character Tables BF3‚ CO32ˉ E indicates
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Accounting 430 - Quiz 8 1) Assuming a 25 percent tax rate‚ compute the after-tax cost of $23‚000 worth of advertising costs. (part c) a) $23‚000 b) $20‚125 c) $17‚250 Because the advertising cost is deductible‚ its after-tax cost is $17‚250 ($23‚000 - [$23‚000 × 25%]). d) $27‚500 2) In 2013‚ Firm A paid $50‚000 cash to purchase a tangible business asset. In 2013 and 2014‚ it deducted $3‚140 and $7‚200 depreciation with respect to the asset. Firm A’s marginal tax rate in both years was 35
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Period 3 (1754-1800): Multiple Choice Exam Questions 1-4 refer to the following image: Advertisement‚ Charleston‚ South Carolina‚ 1780s 1. Which of the following BEST reflects the perspective of the above image? a. Slaves represent a public health threat. b. The importation of slaves is a legitimate enterprise. c. The importation of slaves needs to be halted d. Smallpox was a continuous danger to Charleston 2. During the 1780s‚ which of the following was the most widespread crop cultivated by
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cigarette vendor moves forward after jumping off from a jeepney. _____ 5. Two reacting forces between a pen and a paper when writing _____ 6. Use of seatbelt as a safety measure _____ 7. The harder you dribble a basketball‚ the higher it bounces. _____ 8. A magician pulls a tablecloth out from under dishes & glasses on a table without disturbing them. _____ 9. A picture hanging on a wall and does not move. _____ 10. A heavy table is easier to move when 5 people are pushing it compared to only 2 people
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