for the Eastern European countries. Rather‚ destruction‚ economic instability‚ and a social atmosphere of mistrust and fear tormented Czechoslovakia‚ East Germany‚ and Poland. Amidst all of this‚ in 1945‚ the year Anne Applebaum‚ the author of the Iron Curtain‚ dubbed zero hour‚ the Soviet Union sought to establish anti-fascist democratic governments in these countries. As the years progressed‚ this process evolved into full-fledged Sovietization‚ the transformation of a society based on the Soviet
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World iron ore giants Australia FortescueMetalsGroup plan before March 2014‚ the iron ore export volume increased to 100 million 55 million tons‚ an increase while controlling costs has become a trend.Modern Mining Equipment for Iron Ore Beneficiation in China.Shanghai Changlei Mining Machinery Co.‚ Ltd. ball mill in malaysiais the first production of efficient‚ energy-saving sets of processing equipment manufacturer in China‚ the main products include flotation equipment‚ magnetic separation equipment
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Determination of Iron by Reaction with Permanganate-A Redox Titration Purpose: The purpose of this experiment was to find the percentage of iron in an unknown iron oxide sample which could be determined through titration with a standard solution of potassium permanganate. Success in this analysis requires careful preparation and attention to detail. Performing this experiment also provides practice at titrations. The overall reaction is: 8H+(aq) + MnO4-(aq) + 5e- Mn2+(aq) + 4H2O Theory:
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CHEM 1332 SPRING 2008 – (NEW) FINAL 1. How much energy is needed to convert 180 grams of ice at -10 ºC to liquid water at 10 ºC? (The molar heat capacity of liquid water is 75.4 J/mol ºC; the molar heat capacity of ice is 40.2 J/mol ºC. The molar heat of vaporization of water is 40.7 kJ/mol. The molar heat of fusion of water is 6.02 kJ/mol.) (A) 71.8 kJ (B) 419 kJ (C) 64.2 kJ (D) 64.6 kJ (E) 11‚620 J 2. Which physical property of a liquid is NOT the result of strong intermolecular
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SPECTROPHOTOMETRIC DETERMINATION OF THE EQUILIBRIUM CONSTANT OF A REACTION Methodology The following stock solutions were prepared: 1.0 M HCl‚ 0.1 M HCl‚ 0.1 M KSCN‚ 0.002 M KSCN (in 0.1 M HCl)‚ 0.2 M FeCl3 (in 0.1 M HCl)‚ and 0.002 M FeCl3(in 0.1 M HCl). Using the prepared stock solutions‚ the standard (Table 1) and Unknown (Table 2) solutions were prepared. Table 2. Preparation of Standard Solutions 0.10 M KSCN 0.002 M FeCl3 0.1 M HCl Blank 2.0 ml 0.0 ml 8 ml S1 2.0 ml 0.1 ml 7
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“Iron Mike” Webster labored in football like a possessed man‚ he had great work ethic on the field. He always showed great power during games for his fans who all saw him as a local superhero. He played as a center on the Steelers for fifteen seasons from the 1970’s to the 1980’s. He helped his team through four super bowls and his exploits made him a candidate for a football hall of famer. That’s exactly what he became after showing multiple examples of courage like his own personal hero John Wayne
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The Equilibrium of Religion and Science True science discovers God waiting behind every door. ----Pope Pius XII In the common sense‚ science and religion are considered to be two things at odds‚ for they contradict each other. In the aspects of the exterior‚ it is true. Giordano Bruno was burnt alive by the Catholics for revealing scientific truth. Darwin’s theory of evolution is not taken into curriculum in half of the middle school in US because of the oppression from Catholic. However‚ in
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Experiments 4A-C: Synthesis and Component Analysis of an Iron (III) Oxalate Complex My Name TA‚ Section B## Work Performed on 10/23‚ 10/30‚ & 11/4‚ 200# Report due Tuesday‚ November ##‚ 200# 1. Abstract This experiment initially involved the synthesis of an iron (III) oxalate complex with the general formula Kw[Fex(C2O4)y]·zH2O. The variables x‚ y‚ and z were determined through the duration of the entire experiment. From 1.2000g of Fe(NH4)2(SO4)2 were synthesized 1.1###g of K3[FeIII(C2O4)3]·3H2O
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Iron ore is Australia’s highest valued and most successful commodity export (see Figure 1). Throughout the 1990s and early 2000s‚ this mining industry played a key role in both Australia’s and the global economy. The change in the industry was brought about‚ particularly‚ by the many operations and movements resulting from globalisation that pushed Australia’s exports further than they had ever been. In 2007‚ “Australia produced around 16% of the world’s iron ore and was ranked third behind China
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temperature‚ concentration‚ and pressure on equilibrium Introduction Our ongoing discussion has been on systems at dynamic equilibrium: for a reversible reaction‚ the rate of the forward reaction is equal to the rate of the reverse reaction. What happens if equilibrium is disturbed? In this lab activity‚ we are going to examine the effect of changing reaction conditions on the position of equilibrium. Part I: Effect of temperature We will consider the equilibrium system [Co(H2O)]2+(aq) +
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