Mayceemae M. Barnuevo CHEM 17.1 13L Group 1 February 7‚ 2014 February 19‚ 2014 Exercise 12 SOME INVESTIGATIONS ON THE CORROSION OF IRON I. Introduction Metals undergo natural destruction that allows a spontaneous deteriorating reaction where they return to their original state from where they are obtained upon contact with the surrounding‚ particularly when reacted to oxygen. Such phenomenon is known as corrosion (Zumdahl‚ 1998). This leads the surface of the materials to rust in due time. Usually
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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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A LINEAR PROGRAMMING MODEL OF INTEGRATED IRON AND STEEL PRODUCTION *t TmOR FABIAN University of California‚ Los Angeles Integrated steel mills usually have a choice over the use of various materials and production procMses. Different ores may be used in the proiduction of iron; steel scrap and iron can be used in different proportions in the production of steel. The economical usage rate of all materials is a fimction of numerous variables‚ among which the market price of some materials‚ notably
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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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Fetal Pig Dissection: Lab Report Friday‚ December 06‚ 2013 Saadaf Mohsin Gurjot Randhawa Manvir Benipal Mrs. J. Chohan SBI 3UO Introductory Dissecting animals helps students better understand the anatomy of‚ in this case‚ a fetal pig‚ and helps us prepare for what University has to offer‚ depending on what one will study. Purpose The purpose of the fetal pig dissection was to understand the scientific process of dissection and gain hands-on experience of the internal
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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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The Three Little Pigs is a story most of us will recall hearing during our childhood years. Looking deeper into the story we will see the message behind the story . There are consequences to the decisions we make and sometimes we have to learn things the hard way. Greed and laziness are undesirable characteristics to possess‚ while hard work and careful planning are very positive characteristics. The following story of “The Three Little Pigs” is from Andrew Lang’s Green Fairy Book. There was
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Who ever thought of a pig outsmarting a wolf? Well‚ in The Story of the Three Little Pigs‚ the third little pig is quite a catch! In this story‚ three little pigs each set off on their own and find materials to build their own houses. The first one with straw‚ the second with furze‚ and the third with bricks. However‚ a sneaky wolf blows down the weak houses of the first two pigs and eats them up. Once he gets to the third house‚ the wolf can’t seem to blow down the third pig’s brick house and fails
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