John le Carré: The Spy Who Came in from the Cold This book is a spy story‚ about bluffs between the British Secret Service and the German Democratic Republic. I found it very difficult to understand. The stroy occurs during the Cold War‚ in the 1950s and 1960s. The main character is Alec Leamas‚ a british agent in charge of East German espionage. He is recalled to the Circus‚ because there are no agents left. Control asks him to ’stay in the cold’. That means one last mission for
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definite proportions for the synthesis reaction of combusting magnesium. In this lab‚ the polished magnesium ribbon was placed in covered crucible and was heated in order for it to react with Oxygen presented in air and in water provided. The result showed that Magnesium oxide formed through chemical reaction was made up of 60.19% magnesium and 39.81% oxygen‚ which is approximate proportion of both particles in every Magnesium oxide compound. From this lab it can be concluded that the law of definite proportion
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WHO WALKS 2 Who Walks Away From Omelas ? In the short story “The Ones Who Walk Away From Omelas” by Ursula LeGuin (n.d.)‚ the narrator appears to be telling a story of child abuse from a third person point of view. In this paper I will attempt to expose the narrator‚ not only as a first person witness‚ but as a former citizen of Omelas‚ and as one of the lonely few who has walked away (pdf). LeGuin doesn’t specify the gender of our narrator or the child in this story. I believe she intentionally
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Selective precipitation of the Barium Magnesium Group Chem 112-004 Abstract The purpose of this experiment is to separate and identify the cations of Ba+‚Sr2+‚Ca2+‚ Mg2+ and NH4+ using differences in solubility and confirming test to identify the unknown solution used in this experiment. In this experiment the methodology used by the group is to perform the tests for both the unknown and the cations (Ba+‚Sr2+‚Ca2+‚ Mg2+ and NH4+) using the known as a control for comparison and identification
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The purpose of this lab was to find the empirical formula for magnesium oxide. To find this formula‚ a strip of Magnesium ribbon was burned in a crucible over a flame from a bunson burner. After the strip caught fire multiple times with the cover on‚ and 10 drops of distilled water were added‚ and the crucible was lightly heated. The crucible was then weighed and the mass recorded. Calculations were performed and the mole ratio of Mg to O was recorded. The results of other lab groups performing
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product which is Magnesium Metal. Another objective was determining the formula of the compound that results when Magnesium and Oxygen react. Theory: The purpose of this lab was to confirm the chemical formula of magnesium oxide by comparing the masses of pure magnesium solid prior to any reaction and magnesium oxide solid after a reaction between all of the magnesium and oxygen from the air when heated from a Bunsen burner in a crucible. Using molar masses of both magnesium and oxygen‚ an expected
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International Economics : Section A Q 1 첫째Explain with the aid of community Indifference curve and the production possibility frontier how a country an gain from international trade. 둘째. What other possible gains from trade are there other than the “gain for exchange” and gains from specialization.”? 첫째 The gain from international trade between countries can simply be clarified by the aid of Community Indifference Curves and the production possibility frontier as follows. The production
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Change the world By: Krissy and Erica Wooh oh wooh oh wooh ooh Ooh yeah If I could reach the stars Pull one down for you Shining on my heart So you could see the true That is love I have inside Is everything it seems But for now I find It’s only in my dreams (Chorus) And I can Change the world I would be the sunlight in your universe You will think my love is Really something good Baby‚ if I could change the world Wooh oh wooh oh wooh ooh If I can be a
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Heat of Combustion of Magnesium Background: The students were given full instructions on how to experimentally determine the enthalpy of reaction (ΔHrxn) for the combustion of magnesium ribbon‚ using Hess’s Law. Data Collection: | |Reaction 1 |Reaction 2 | | |(MgO) |(Mg)
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composition by mass of magnesium oxide – Report Objective: To measure and calculate the ratio of magnesium to oxygen in magnesium oxide. To compare the lab ratio to the percent composition calculation based on the formula. Hypothesis: Based on the law of definite proportions‚ the percentage composition of magnesium oxide should be around 60% magnesium and 40% oxygen. Materials: * Goggles * Centigram or analytical balance * 2-4 cm magnesium ribbon * Steel
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