N12/4/CHEMI/SPM/ENG/TZ0/XX 88126104 CHEMISTRY standard level Paper 1 Friday 9 November 2012 (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. • The periodic table is provided for reference on page 2 of this examination paper. • The maximum mark for this examination
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The Foreign Direct Investment in South Korea South Korea‚ one of four Asian tigers is a center of economic activity‚ culture‚ and art. Today‚ most of the multinational companies prefer to invest in this Asian nation not only because it is a democratic nation‚ but also it is favorable to FDI‚ and with fewer barriers. Therefore‚ in this assignment I am going to discover how South Korea is favorable to FDI by analyzing several factors‚ including its economic system‚ projected size of the national market
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drawing is cartoonish‚ there are lines that emphasize the width which makes the viewer know the can being drawn has volume. Andy Warhol used different materials to create his artwork. Some of these materials were ink‚ oil on a canvas‚ acrylic‚ and graphite
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)quantity acceptor number ( )quantity accommodation coefficient accretion in atmospheric chemistry accuracy of a measuring instrument accuracy of measurement acenes acetals acetogenins acetonides acetylene black acetylenes acetylides Acheson graphite achiral
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8.2 Chemical Earth 8.2.1 The living and non-living components of the Earth contain mixtures * Construct word and balanced formulae equations of chemical reactions as they are encountered Combustion reaction (burning) element + oxygen → oxide e.g. 4Na (S) + O2 (g) → Na2O (s) Reaction with hydrogen element + hydrogen → hydride e.g. Ca (s) + H2 (g) → CaH2 (s) Reaction between an oxide and water metallic oxide + water → hydroxide * metallic oxide is also known as “basic oxide” e.g
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Are you turning to the answers too soon? When you get stuck on a question do everything you can to answer it EXCEPT looking at the answer 1. Use your textbooks 2. Use your notes 3. Use the presentations 4. Use drop in 5. Use websites Don’t ever simply copy down an answer without knowing how to get there. BUT finally do check all your answers carefully here. You can also read the examiner’s report for each question.
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PRASAD V. POTLURI SIDDHARTHA INSTITUTE OF TECHNOLOGY KANURU‚ VIJAYAWADA – 520007. DEPARTMENT OF MECHANICAL ENGINEERING A MINI PROJECT REPORT ON SUGAR CANE CRUSHING ROLLERS PRESENTED BY : P. GIRIDHAR (09501A0335) P. J. SANDEEP (09501A0342) S. AKHIL (09501A0353) ACKNOWLEDGEMENT We are deeply grateful to Dr. K. Shivaji Babu‚ Head of the department of Mechanical Engineering‚ Prasad V. Potluri Siddhartha Institute of Technology‚ for
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and anodising. (i) Explain how an impure sample of copper can be purified 3.The circuit in Figure 2 can be used to test if a substance conducts electricity. a) Complete Table 1 below to indicate the effect of the bulb in Figure 2‚ when graphite rod is replaced by EACH of the substances in Table 1. TABLE 1 : EFFECT ON BULB Substance Effect on bulb Lead Solid lead bromide Molten lead bromide Liquid bromine b)Classify EACH of the substances in
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Biophysicist Maurice Wilkins was born on December 15‚ 1916‚ in Pongaroa‚ New Zealand. He worked with the Manhattan Project before turning to biophysics. He produced the first image of DNA fibers. Also a conflict did occur between him and his colleague Rosalind Franklin‚ helped do the Watson and Crick double-helix model shared in 1953. Wilkins got the Nobel Prize for his work. He died on October 6‚ 2004. Early life Maurice Wilkins was born by two Irish parents. When he was born his father‚ Edgar
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Alabama. Dixon‚ a specialty chemicals company‚ was willing to purchase the aforementioned plant for $12m with the option to invest a further $2.25m on laminate technology. The subsequent investment in Laminate technology was expected to eliminate graphite costs and reduce power consumption at the Collinsville plant by 15% to 20%. We will evaluate the acquisition of the Collinsville by Dixon at the proposed price. Table 1 identifies the assumptions that have been used for the evaluation of this
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