Determining the Enthalpy Change for a Redox Reaction Criteria Assessed: Background Design Research Question What is the enthalpy change between the reaction of Zinc reducing Copper II ions? Purpose Determine the change in enthalpy for the redox reduction of zinc reducing Copper II ions. Independent Variable Dependent Variable The change in temperature Controlled Variables Materials/ Apparatus * Zinc powder * 2‚ Foam cups * 10 cm3 pipette * stopwatch * 1.00 M Copper
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Although I love science‚ I encountered more problems in this subject than any other. Recently‚ I was assigned a lab. The purpose was to let Copper Sulfate react with Aluminum and obtain Copper. Before the experiment‚ I set up the stoichiometric equation carefully‚ predicting the production of Copper using my assigned mass of Copper Sulfate. Additionally‚ I intentionally made Copper Sulfate an excess in my equation‚ since it would be dissolved in water and I would only have to collect Copper at the
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Maintenance of vertical roller mill in the break-in period vertical roller mill is the key equipment for grinding after the crushing process‚ which is widely used in the manufacture industries‚ such as cement‚ silicate‚ new building material‚ refractory material‚ fertilizer‚ ferrous metal‚ nonferrous metal and glass ceramics and can be used for the dry and wet grinding for all kinds of ores and other grind-able materialsWhen wet Ball Mill works‚ certain water and other liquid will be added into
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Building sand is valued by the engineering projects‚ which includes manufactured sand and natural sand. The artificial sand is manufactured by crushing raw materials conducted by the crushers and sand makers. There are three reasons for artificial sand being the model of building sand that is advocated by the state. The first is to avoid the destruction of riverbed caused by excavation of river sand‚ thus preventing the floods and security risks. The second is to reduce the energy consumption and
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Stock Evaluation Project - Steel Industry Industry Analysis Steel is a part of metals and mining industry which is highly cyclical in nature‚ and when the economy at large suffers‚ this industry suffers with it. The most recent five years have been a struggle for this particular industry along with uncertain economic indicators‚ and steel companies’ stocks have trended downwards. The metals and mining industry is comprised of companies that engage in exploration‚ mine development‚ and ore mining
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Sample Paper – 2011 Class – X Subject – Science Time: 2 ½ Hrs General Instructions: I) ii) iii) iv) Maximum Marks: 60 The question paper comprises of two sections A and B. You are to attempt both the sections. The candidates are advised to attempt all the questions of Section A separately and Section B separately. All questions are compulsory. There is no overall choice. However‚ internal choice has been provided in two questions of five marks category in Section A and one question of 2 marks
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Design Lab Experiment: How would an increase in the atomic radii of the metals in period 4 affect the time it takes for a metal to react with HCl. Hypothesis: If Hydrochloric Acid is dropped on all of the metals in period 4‚ then the elements with the largest atomic radii will react faster with Hydrochloric Acid because atoms with bigger atomic radii are
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1.0 INTRODUCTION: AISI 304L austenitic stainless steel is widely used as engineering materials due to its high strength and good corrosion resistance properties. However‚ AISI 304L stainless steel undergoes extensive wear and erosion when applied as components in aggressive environments such as petro- chemical and marine atmosphere [1]. Solid particle erosion is defined as the progressive loss of material from a solid surface due to mechanical interaction between the surface and some fluid entrained
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Explosive Welding-Rough Draft The development of explosive welding was first recognized by Garl in 1944. But it was not recognized in the United States until 1957 when it was observed by Philipchuck that metal sheets that were being explosively formed would occasionally stick to other metals. Over the decades the process has been developed fully with large applications in the manufacturing industry. Explosive welding is a solid-phase process where welding is accomplished by accelerating one of
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ASSIENMENT [2] METAL FORMING REVIEW QUESTIONS 1- What are the differences between bulk deformation processes and sheet metal processes? Answer. In bulk deformation‚ the shape changes are significant‚ and the work parts have a low area-to-volume ratio. In sheet metal processes‚ the area-to-volume ratio is high. 2- Extrusion is a fundamental shaping process. Describe it. Answer. Extrusion is a compression process in which the work material is forced to flow through a die orifice‚ thereby forcing
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