Pre-lab 1: Identifying Carbohydrates Abstract The point of this lab is to determine if a substance contains carbohydrates such as a reducing sugar and/or polysaccharides. This will be done by using Benedict’s reagent and Iodine stain tests. Benedict’s reagent will react to reducing substances in the solution by oxidizing it and changing the structure of the reducing sugar to form a colored precipitate. The color of this precipitate can be used to determine the concentration of reducing sugars in
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Aim: What is the effect of changes in sucrose concentrations on the water potential of potato cells? Raw Data: Suscrose concentration (0.00M) Group 1 Group 2 Group 3 Group 4 Change in mass (g) (+/-0.1g) 0.04 0.19 0.10 -0.27 Change in length (mm) (+/- 0.1mm) 0.00 0.00 0.00 0.30 Suscrose concentration (0.10M) Group 1 Group 2 Group 3 Group 4 Change in mass (g) (+/-0.1g) 0.29 0.44 0.22 0.08 Change in length (mm) (+/- 0.1mm) 1.10 0.30 0.30 0.70
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English 113 YD4 March 1‚ 2013 Midterm Triple Threat Criticism Each of the short stories “Happy Endings”‚ “A Sorrowful Woman”‚ and “The Story of an Hour” express the central idea that women are confined and identified by their roles as wives or mothers by society. The authors’ goal of these short stories is to portray modern marriages‚ to help people be conscious to women ’s liberalism‚ and to instruct people not to focus on the endings of stories‚ but the middle portions. Margaret Atwood‚ Gail
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the argument whether or not that this is a good thing. Is the government getting too large that it is hurting individual rights and liberties‚ or is it providing opportunities for others to pursue them? In the journal article‚ “Is the Bureaucracy a Threat to Liberty”‚ we see opposing viewpoints from Ellsworth Barnard and Jacob Hornberger about if big government imposes on individual liberties. In order for all of the citizens of the USA to have equal opportunities towards safe and productive liberties
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a current of 5.00 A. The density of aluminum is 2.70 g/cm3. Assume each aluminum atom supplies one conduction electron per atom. Find the drift speed of the electrons in the wire. 12. A lightbulb has a resistance of 240 when operating with a potential difference of 120 V across it. What is the current in the lightbulb? 13. An electric heater carries a current of 13.5 A when operating at a voltage of 120 V. What is the resistance of the heater? 18. Aluminum and copper wires of equal length
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reactive than___ a) Lead b) Zinc c) Platinum d) Both (a) and (b) 11. The atomic number of natural radioactive element is __ a) 82 c) Not defined d) at least 92 12. Kilowatt-hour is the unit of ___ a) Potential difference b) Electric power c) Electric energy d) Charge 13. The potential difference required to pass a current 0.2 A in a wire of resistance 20 ohm is ___ a) 100v b) 4v
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Spartacist uprising 1919 Spartacist was really just an early name for ’Communists’. At the end of WWI when the Kaiser was overthrown and left Germany Nov. 1918‚ moderate socialists took over and formed a government. The Spartacist (led by Rosa Luxemburg and Karl Liebknecht) wanted a violent Communist revolution and a wiping out of Capitalism but were rejected. In Dec. 1918 the Congress of workmen and soldiers councils rejected radical Communism and Luxemburg/ Liebnecht. In Jan. 1919 Luxemburg/
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Rogelio Orta-Martin October 10th‚ 2010 DADI400 Genese Gibson Module 1 Exercise Identifying and Describing the Management Functions When we think of a manager‚ the first think that most of the time comes to our mind is one person with the responsibility of telling others what to do and how to do it. This is true‚ but being a manager is much more than that. University programs across the United States train students that want to become health care managers in areas such as structuring
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The Potential of Bamboo(Bambusa vulgaris) Shoot as Pancit Bautista National High School Bautista‚ Pangasinan Werner J G Junio Proponent Mrs. Febren Velasquez Research Adviser i TABLE OF CONTENTS Page Project Title. . . . . . . . . . . . . . . . . . . i Table of Contents. . . . . . . . . . . . . . . . . ii CHAPTER 1. THE PROBLEM: RATIONALE AND BACKGROUND Background of the Study. . . . . . . . . . . . . . 1 Conceptual Framework. . . . . . . . . . . . . . .
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N09/4/PHYSI/SPM/ENG/TZ0/XX+ 88096504 Physics standard level PaPer 1 Monday 16 November 2009 (afternoon) 45 minutes INSTRUCTIONS TO CANDIDATES • Do not open this examination paper until instructed to do so. • Answer all the questions. • For each question‚ choose the answer you consider to be the best and indicate your choice on the answer sheet provided. 8809-6504 16 pages © International Baccalaureate Organization 2009 – 2 – 1. N09/4/PHYSI/SPM/ENG/TZ0/XX+ The
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