Identification and Recreation of Unknown White Compound #643p November 13‚ 2012 INTRODUCTION: The identity of the unknown solid white compound is determined and verified through a series of tests which uncover physical and chemical properties necessary for identification. A new sample of the same compound is then created to further prove the accuracy of the identification. The compound must be identified in order to be used. For example‚ KCl is used in medicine‚ scientific applications‚ and
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Scheme of Analysis for Lab 2 Unknown Sample Description Phase‚ color‚ odor‚ crystalline or gel-like? If crystalline‚ what is crystal shape – needle-like or powdery? Does it look like a pure substance or a mixture? How many components appear to be present? Tests on original sample Flame Test Bushy yellow‚ orange flame – Na+ is present and possibly K+ and NH4+. Pink-purple flame – K+ is present and Na+ is not. (Possibly NH4+) No color or faint trace Na+ - NH4+ is possible‚ K+ and Na+ are
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P1: you must explain how infections are caused by‚ bacteria‚ viruses‚ fungi and parasites. P2: you must explain how pathogenic microorganisms grow and spread. In this assignment I am going to explain how infections are caused by‚ bacteria‚ viruses‚ fungi and parasites. I will then explain how pathogenic microorganisms grow and spread. Infection is the process where germs enter a susceptible area in the body‚ where they multiply‚ resulting in disease. Colonisation is where microbes are present
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Jacksonian Democracy was or was not democratic? Jacksonian Democracy marked the age "of the common man" and the era for an improvement on government and society. When Andrew Jackson was president‚ he led the nation of the United States into dramatic changes both socially and politically which affected the government system and the lives of the American people positively. He fascinated the American people greatly because he stood for values they stood for such as a better government system. Because
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The Unknown Struggles of Homeless Children Tammy R. Mathews Liberty University Abstract This research assessed the struggles of homeless children. The study compared the educational struggles of a random sampling of children living in stable environments to children who are considered “homeless.” Homeless refers to any child or youth who lack a fixed‚ regular‚ and adequate nighttime residence. The study revealed the number of homeless
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aboard the H.M.S Beagle. In the article‚ Quammen talks about theory and explains what it is. He states that Darwinism was just a theory. In the article he talks about how “45% of responding U.S. adults agreed that God created human beings pretty much in their present form at one time within the last ten thousand years” (Quammen‚ 1). Quammen then begins to present the evidence that Darwin was correct in some of his theories but not all of them. He does this by stating what Darwin based most of his beliefs
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A bacterium of choice by Frederick Griffith was S. pneumoniae cells also known as Pneumococcus bacteria. This is due to the growth of bacteria inside the body of a host regardless in the form of either solid or liquid cultures. In 1928‚ Frederick Griffith studied and published his findings on the different strains of Pneumococcus bacteria. There were 2 in particular that looked different; S and R. The R colonies has rough surface whereas the S colonies have smooth surface. Intrigued by the experiment
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tea on the growth of E. coli bacteria cultures Kierstin Barker‚ Melissa Bischak‚ Jackie Tyszkiewicz‚ Errin Enany September 25‚ 2012 Abstract: This study was carried out in order to investigate whether black tea has antimicrobial properties as stated in Steven Johnson’s The Ghost Map. If tea does have antimicrobial properties‚ then it could aid in warding off waterborne diseases. We believed that if black tea is steeped in boiled water‚ then the amount of bacteria exposed to this solution would
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An Autobiography of an Unknown Indian by Nirad C. Chaudhuri. In this book the author has depicted his “Early Environment” in book -1 which he talks about his “ My birth place”‚ “ My Ancestral village” where he has pass his old days‚ “ My Mother place” where he had lived for sometimes and also describe about “England” as he was very fascinated of it. So as the same he talks about his “parents and early 12 days” and something about “Nationalism” in book -2.In book -3 he talks about “Calcutta” how
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Was the U.S. Justified in Going to War With Mexico? (Yes) The United States of America in the 1800’s was a rapidly growing country. Many people moved west for religious freedom while others were strong believers in Manifest Destiny. In order to occupy land‚ settlers had to find land that wasn’t already occupied. Since most of the west was a part of Mexico‚ this was not easy to do. Luckily‚ Mexicans also wanted settlers in their western lands because that area was not developed. Mexico invited
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