sulphides in contact with air and water produces sulphuric acid which reduces the pH of water. The result of these reactions is increase in the solubility of heavy metals and consequently pollution of water resources. The Sarcheshmeh copper mine is one of the largest porphyry copper mines in the world which is located in south-eastern Iran. Chemical analysis of over than 600 water samples taken from streams and springs in the mining region and surrounding area of pit showed extensive changes in water quality
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Coursework 4 Copper Name of student: Alfiya Ospanova Tutorial group: G Copper is one of the earliest elements explored by humanity. Due to the special red shade it was easy to find in ancient times. The metal was named according to place where it was found‚ the Cyprus islands. Copper produced in massive stars and spread in the world as minerals like chalcocite and chalcopyrite (sulfide of copper)‚ azurite and malachite (carbonate of copper)‚ cuprite (oxide of copper). The atomic
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BOSE CORP. (THE JIT II PROGRAM) Case Analysis No. 18 A written report Submitted to: Prof. Ma. Julie V. Johnson Ramon Magsaysay Technological University Graduate School Castillejos Campus In partial fulfilment Of the Requirement in BM 402 Management of Business Logistics Submitted By: Marlon D. Jaranilla January 23‚ 2010 1 Submitted by: Marlon D. Jaranilla BOSE CORP. (The JIT II Program) Case Analysis No. 18 I. GAINING FAMILIARITY / CASE BACKGROUND Bose Corporation was founded
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JIT at Arnold Palmer Hospital Arnold Palmer Hospital’s is one of the most important hospitals in the US where it specializes in treatment of women and children. One of its main goals is manage a reduce costs‚ for this reason Arnold Palmer hospital uses some crucial just-in-time (JIT) techniques. These techniques help to maintain the control of its inventory with a high efficiency and low cost. The mission of this case will be answering the discussion questions‚ but focusing in Just-in-time strategies
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Implementing Electronic Health Records (EHR) a Difficult Task Ahsun Jaat Student #: 211593118 Tutorial #3 TA: Vishaya Naidoo Due Date: November 14th‚ 2012 Introduction Electronic Health Records (EHR) are a system developed for doctors to document health records electronically as oppose to the old fashion way of writing everything down on paper and relying on memory to help patients with their medical problems (Ash 2004). Technology has now turned into need for almost every individual living
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3rd‚ 2009 Lab Report #3: Copper Cycle Abstract: The purpose of the experiment is to cycle solid copper through a series of five reactions. At different stages of the cycle‚ copper was present in different forms. First reaction involves reaction between the copper and nitric acid‚ and copper changed from elemental state to an aqueous. The second reaction converted the aqueous Cu2+ into the solid copper (2) hydroxide. In the third reaction Cu(OH)2 decomposed into copper 2 oxide and water when heated
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Rocks containing copper compounds (such as copper carbonate) are called ‘copper ore’. Copper is extracted from copper ore by a series of chemical‚ physical‚ and electrochemical processes. Ores can be classed as ‘high grade’ or ‘low grade’ depending on the percentage of copper compounds (e.g. copper carbonate) they contain. After mining‚ the ore is crushed‚ roasted‚ smelted and then electrolysed to extract the copper. Suggested Equipment Boiling tube Samples of different carbonate ores‚ containing
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communication understanding one another may be challenging. To be able to comprehend what communication is one must understand the process of communication and the components of it. In this paper I will discuss the difference between hearing and listening along with the different channels within the criminal justice system. Barriers of communications and the strategies that may be implemented to overcome these barriers will also be explored. Communication is a continuous process that involves the
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A Sequence of Chemical Reactions: Transforming Copper Briefly describe. a) Why must you carry out the oxidation of Cu with HNO3 in a fume hood? Concentrated nitric acid is a toxic oxidant. Avoiding skin contact or inhalation is highly important. The reaction between Cu and HNO3 produces NO2‚ a toxic brown gas; therefore working under the fume is necessary in order to prevent inhaling the toxic gas. b) Why you should be particularly careful when you work with 3 M H2SO4 solution? Sulfuric acid
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Research question/Aim Extract copper from copper oxide by reduction using butane gas Hypothesis The butane gas will reduce the copper oxide and leave behind pure copper. This will allow us to find the empirical formula of the copper oxide as well as the masses of oxygen and copper Variables Dependant variable The dependant variable will be the reduction of the copper oxide which will be calculated at different temperatures. Independent variable The independent variable here
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