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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Discuss how Barker presents the theme of imprisonment and feelings of ‘being trapped’ through the characters of Burns and Prior in ‘Regeneration’ Within the novel ‘Regeneration’ Pat Barker explores the theme of imprisonment and the feeling of ‘being trapped’ through the use of setting and the characters mentality. ‘Regeneration’ was written in 1991; however‚ Barker sets the novel in 1917‚ during the First World War. The setting for this novel is at Craiglockhart War hospital in Scotland and is
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Mine Nationalization Proposals Mine nationalization has been a topic of discussion in South Africa for the past two years. South African mines are the fifth largest in the world and produce more than 80% of the world’s platinum. Other minerals found within the country are coal‚ gold‚ and diamonds. There are many opposing views surrounding the issue‚ which leads one to believe South African mines will not be nationalized. For Nationalization: * Redistribution of wealth; private ownership
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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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ABSTRACT Title: Extract of Squash Seeds as an Organic Rust Inhibitor Researchers: Aguilar‚ Sandino Michael Angelo Alejo‚ Gymboy‚ Agripa‚ Cyril Ann‚ Baloloy‚ Alyssa Mae‚ Zamudio‚ Catherine Corrosion is the phenomenon of a material as a result of its interaction with its environment‚ which is applied mostly to metals particularly to their reaction with oxygen. Rust inhibitor that when added to liquids decreases the corrosion rates of a material. The researchers proposed for a rust inhibitor
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As Ernest Hemingway said: “There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self.” And that’s‚ to my mind‚ the way every person should follow. I am Yang Qi.It is how I try to live‚ always improving and getting better. Therefore‚ to be pretty honest with myself‚ I decide to do the thing I think I cannot do; I’ve concluded that good and integral qualities of my nature are positive attitude‚ thoughtfulness for other people‚ and cheerfulness
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a patient. This involves evaluating the patient by asking questions and having the patient answer them. This is used to determine why and how a person is behaving the way that they are. This can also be used to see how a patient has made progress after treatment. For example: What brings you in today? What are your symptoms? Are you married? What is your family history? Have you ever thought about hurting your self or any one else. This can also include clinical interventions‚ clinical tests‚ and
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Article Rebuttal: The Pebble Mine Daisy Chiskok BCOM/275 February 18‚ 2013 Rhonda Waters Tour opened mind to Pebble Mine I visited the site of the proposed Pebble Mine last week. Like many Alaskans‚ I had misgivings about the wisdom of a large-scale mine being developed in the middle of one of the World’s great fisheries. So it was with a fair amount of skepticism that I approached this tour. The presentation that opened the tour contained a history of the exploration‚ area geology and
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heat CuO + H2O 4) CuO + H2SO4 Cu2+(aq) + SO42-(aq) + H2O 5) Cu2+(aq) + Zn Cu + Zn2+(aq) Stage 1- Dissolution of Copper Mass of vial & copper = 3.537g Mass of vial = 2.505g Mass of Copper = 1.032g Moles of copper = mass (g) ÷ (63.5g/mol) = 0.0162 mol (3s.f) Copper description: Initially‚ the copper was a solid that was cut into thin strips. It had a shiny/metallic and opaque look‚ with an orange colour. HNO3 description: The nitric
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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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