Tar Sands The majority of oil used by the United States as well as internationally soon may come from the tar sands in Alberta‚ Canada. Extracting oil from tar sands is an extremely costly and immensely dirty way of obtaining fuel. There is currently a plan to build a pipeline‚ the Keystone XL‚ which will run from the supply of tar sands in Albert down the western United States to refineries in Texas. There are two major concerns when dealing with the creation of this pipeline and the increased
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problems by improving child labour legislation and laws and also by increasing the quality‚ relevance and access to education. Many countries have national child labour laws that establish a minimum age for work and regulate working conditions. In conclusion‚ child labour should not happen as our greatest "natural resource" is the mind of the children. If child labour continues‚ the children will not be able to get a good education and our society cannot improve. So‚ let’s put our hand together to
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the physical and chemical properties of salt (NaCl) and sand (SiO2). Followed by the right procedure we were able to design and test out the components of both NaCl and SiO2 in order to separate the unknown mixture that we were able to find out about. We were also given the task to provide the percent composition of the mixtures. Therefore‚ the separation of components among this experiment allowed us to obtain the right numbers for our calculations. Mixture is defined as a substance made by mixing
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Redox Titration: Determination of the Percentage of Iron in a Sample INTRODUCTION The concentrations of redox-active species can be determined by redox titrations. In a redox titration‚ a measured sample of the unknown is titrated against a standard solution of a substance that will oxidize or reduce the unknown. In the present experiment you will take a sample containing iron‚ add acid to dissolve it [thereby converting all the iron to iron(II)]‚ then use a solution containing permanganate
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Introduction A sand casting or a sand molded casting is a cast part produced by forming a mold from a sand mixture and pouring molten liquid metal into the cavity in the mold. The mold is then cooled until the metal has solidified. In the last stage the casting is separated from the mold. There are six steps in this process: (see sketch below): 1. Place a pattern in sand to create a mold. 2. Incorporate a gating system. 3. Remove the pattern. 4. Fill the mold cavity with molten metal
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The Iron–Iron Carbide (Fe–Fe3C) Phase Diagram • In their simplest form‚ steels are alloys of Iron (Fe) and Carbon (C). • The Fe-C phase diagram is a fairly complex one‚ but we will only consider the steel part of the diagram‚ up to around 7% C b d Carbon. • Phases present α-ferrite‚ γ-ferrite‚ δ-ferrite‚ Fe3C (iron carbide or cementite) Fe-C liquid solution School of Mechanical and Building Sciences‚ VIT University‚ Vellore 1 Phases in Fe–Fe3C Phase Diagram α-ferrite
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Genevieve Sierra Chemistry seg. 2 June 15‚ 2014 05.05 mixtures and solutions: Lab report: outline Ink chromatography Chromatography is the separation of a mixture by passing it in solution or suspension or as a vapor (as in gas chromatography) through a medium in which the components move at different rates. It is used to separate substances. Examples of chromatography are finger-printing‚ medicines‚ and separating/ testing histamines. http://www.biotecharticles.com/Agriculture-Article/Applications-of-Chromatography-1299
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of various types of equipments for whole set of sand-making production line‚ and provides superior technical support for customers. The whole sand-making production line consists of vibrating feeder‚ jaw crusher‚ sand-making machine‚ vibrating screen‚ belt conveyor‚ electric control system‚ etc. We designed the production line has 30 tons to 800 tons. The whole design is simple and convenient‚ For customers to save time‚ money and space. VSI sand making machine is the lasted product of authoritative
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Conclusion As we did the research for Apple Company‚ we could found out that Apple Company is well developed in a way of their products and services towards the users. Apple had innovated their products and taking the lead of the other company like Nokia‚ Sony Ericsson‚ LG and so on by its own touch screen hand phone technology selling on market to be one of the most influential in the share market of the nationwide. As to be seen‚ Apple focuses its strength on building up their branding power
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University of Phoenix Material Introductions and Conclusions As you begin to write the rough draft of your paper‚ think critically about how you might draw your readers’ attention in a compelling way. Consider how to create a rapport with the audience. For example‚ what areas of agreement may already exist between you and your readers? What does your audience need to make them interested in your topic? Types of Introductions One way to draw in the audience is to grab readers’ attention
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