Iron‚ Steel and Aluminium Main sources of iron: * second most abundant metal (5% by mass) in Earth’s crust (fourth most abundant element) * found in rock (a mixture of minerals) as one or more minerals (usually a compound) * if a mineral is of economic importance‚ it is referred to as an ore * iron containing minerals include hematite (Fe2O3)‚ magnetite (FeO·Fe2O3 or Fe3O4)‚ limonite (FeO(OH)·nH2O) and siderite (FeCO3) Alloys: * homogeneous mixtures of metals or metals and
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Q.1: what did Churchill mean in May 1945 by the term “Iron Curtain”? A.1: When Churchill stated “An Iron Curtain is being drawn upon their front.” He means that during 1945 when the war was over‚ he was talking about an imaginary line drawn between communism in the East and the democratic governments in the West. This was to prevent more fighting over the systems; Churchill knew that the Soviet Union were dangerous. Churchill wanted the allies to get to Berlin and take it before the Russians would
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Iron Man 3 Super hero movies have always been a hit when it comes to new releases. Of course‚ director Shane Black can never go wrong in filming another Marvel movie‚ what’s better than having another prequel film of Iron Man named Iron Man 3. The director did an amazing job at catching the audience’s attention. This Superhero sequel proved to make a success after making the $1 Billion mark less than four weeks after being released‚ and in my opinion being one of the most entertaining Marvel superhero
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Iron Curtain The iron curtain wall was built by the Soviet Union it divided Europe into two separate areas. It was built at the end of World War II in 1945. Both sides of the Iron Curtain the states made their own economy and military forces. On March 5‚ 1946 Winston Church made his speech. "From Stettin in the Baltic to Trieste in the Adriatic an "iron curtain" has descended across the Continent. Behind that line lie all the capitals of the ancient states of Central and Eastern Europe. Warsaw
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Iron Maiden are an English heavy metal band from Leyton in east London‚ formed in 1975 by bassist and primary songwriter Steve Harris. Since their inception‚ the band’s discography has grown to include a collective total of thirty-six albums: fifteen studio albums; eleven live albums; four EPs; and six compilations. Pioneers of the New Wave of British Heavy Metal‚ Iron Maiden achieved success during the early 1980s. After several line-up changes‚ the band went on to release a series of platinum
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If gold rust what iron will do People are born with the insatiable desire to find somebody perfect. We spend our whole lives ransacking the world for the immaculate human being who deserves our boundless reverence and whom we should emulate. We are on an unceasing quest to find our own paragon of virtue. But what a treacherous thing it is to believe that a person is more than just a person! (John Green) The inherent thing in people is that we are fallible creatures. We have unfounded high self-esteem
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Structures‚ Biosynthesis and Biofunctions of Iron-sulfer proteins Yiming Chen‚ Brown University‚ May 11th‚ 2011 I. Introduction Iron-sulfur proteins are the proteins which contain iron-sulfur clusters‚ like sulfide-linked di-‚ tri-‚ and tetrairon centers with various oxidative states 1. An excess of 120 distinct types of enzymes and proteins are known to contain Fe-S clusters2. Iron-sulfur proteins are known for the role of the oxidation-reduction reactions of mitochondrial electron transportation
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Experiment 4 Guide Questions for Discussion Iron-Silver Equilibrium 1. Give the balanced net ionic equation for the reaction between Fe2+ and Ag+. What is the chemical formula of the gray precipitate? Answer: Fe2+(aq) + Ag+ (aq) Fe3+(aq) + Ag (s) The formula of the precipitate is Ag(s). 2. Give the balanced net ionic equation for the reaction of Fe2+ with Fe(CN)63-. a. What is the chemical formula of the Prussian blue precipitate? b. How does
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DCP + CE: An Analysis of Iron Tablets |Pipette Solution |Iron (II) solution | |25 cm3 | |Burette Solution |Potassium Manganate (VII) |0.01 moldm-3 | | | |Trial |1 |2 |3 | | |Burette Readings |Final |11
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Copper-Iron Stoichiometry Lab Report 10/3/12 Abstract: The lab performed required the use of quantitative and analytical analysis along with limiting reagent analysis. The reaction of Copper (II) Sulfate‚ CuSO4‚ mass of 7.0015g with 2.0095g Fe or iron powder produced a solid precipitate of copper while the solution remained the blue color. Through this the appropriate reaction had to be determined out of the two possibilities. Through the use of a vacuum filtration system the mass of Cu was
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