Chilean Copper Mine BCOM/275 Resource: ―Over 30 Workers Trapped After Chilean Copper Mine Collapse‖ article found in the Electronic Reserve Readings. Research additional articles and information about the Chilean mine collapse. Write a 700- to 1‚050-word paper using this and other articles as a resource. Because communications must be designed with the audience in mind‚ answer the following questions: What are some considerations to remember given the different roles and people in the audience
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Indirect determination of ∆H via Hess’s law Conclusion & Evaluation Research question: What is the ∆H/mol of hydration of CuSO4 (anh)? The ∆H/mol of hydration of CuSO4 (anh) is -70.2‚ according to the experiment done in class. It was determined by applying the Hess’s law‚ using two reactions 1) CuSO4-5H2O ----> CuSO4 (aq) + 5H2O 2) CuSO4 (anh) -----> CuSO4 (aq) According to the Hess’s Law‚ which states that the total enthalpy change for a chemical reaction is the same disregarding
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AT A GLANCE HINDUSTAN COPPER LIMITED KHETRI COPPER COMPLEX KHETRINAGAR KHETRI COPPER MINE Mine Started: - Oct. 1964 1- Ore Body (a) Strike Length 4.80 Km (b) Average Width 10 metres (c) Average Dip 65 deg. (d) Average Grade 1.37 % 2- Ore reserves of Khetri Mine Reserve of Khetri Block : 34.11 Million Tons‚ Grade1.13% Reserve of Banwas Block : 25.39 Million Tons‚ grade 1.69%
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The Native Hawaiians Right to Self Determination Monikalynn Hawkins ANT 101 Introduction to Cultural Anthropology Dr. Ronald K. Bolender October 22‚ 2009 Ancient Hawaiian genealogy suggests settlement of the islands by Tahitian navigators sometime between A.D. 300 and A.D. 800. (Trask‚ 1993‚ p.4) Before the coming of colonizers‚ the native society was organized as a familial society‚ consisting of tribes and chiefdoms‚ which provided
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Determination of Energy Balancing In a fuel cell power vehicle: http://www.scribd.com/doc/49625260/39/Fuel-Cell-Energy-Balances Fuel Cell * What is fuel cell * Why we need fuel cell * History of fuell cells * Mathematical methods * Classification of fuel cells * Parts of a fuel cell * Fuel Cell Setup * Modeling of fuel cell * Fuel cell system design * Advantages and disadvantages of fuel cell * Future scope of fuel cell Energy Balance in Fuel Cells
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Determining the Percentage of Copper in a Copper Ore Aim: To determine the percentage of copper present in malachite. Hypothesis: That the percentage of copper in the malachite will be four percent. Materials: 2 x 250mL beaker‚ pestle‚ malachite‚ sulfuric acid‚ water‚ 2 x filter paper‚ funnel‚ filter stand‚ Safety Precautions: Wear safety glasses at all times when dealing with chemicals and apron to avoid ruining clothes. Method: Record the mass of the malachite sample. Place the malachite
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Tittle: Determination of moisture Objectives: 1. To determine the moisture content of selected food samples using drying oven method 2. To determine the moisture content of selected food samples using moisture analyzer. Introduction: Moisture content is one of the most commonly measured properties of food materials. The choice of an analytical procedure for a particular application depends on the nature of the food being analyzed and the reason the information is needed. In this experiment
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In the novel Copper Sun the viewpoints were taken from a 15-year-old slave girl named Amari‚ and a 17-year-old indentured servant Polly‚ Copper Sun is a story of the struggles in the face of human beings during slave times and a hope for freedom against all odds and circumstances. In the novel the AOI that it is portrayed is the area of Health and social education. I chose this AOI because both Amari and Polly had to adapt to their new surroundings and they also had to learn the routes around the
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and nothing more. At night if you were female you got raped often. If you were a male you worked in the rice fields‚ with the alligators and the snakes and if you ever disobeyed or did something incorrect you were wiped and beaten. In the book the copper sun Amari the female protagonist‚ goes through these hardships and has to find some reason to live and fight for her freedom. Amari shows traits of perseverance‚ bravery and strength. But still through all of these things she fights to be free.
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Impact of Hydration on Physical and Mental Performance By Raeey Melaku. Introduction Our body has its own way of indicating when we need a certain aspect that is essential for us to live. For food‚ there is hunger. For urination‚ there’s the need to use the bathroom and in this case‚ for water‚ there is thirst. Water is by far the most essential nutrient in the world. We need water everyday. We can go up to three weeks without food and yet we can only survive three days without
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