4.1 & 4.2: General properties of aqueous solutions and Precipitation Reactions: 1. (Brown 4.11) When asked what causes electrolyte solutions to conduct electricity‚ a student responds that it is due to the movement of electrons through the solution. Is the student correct? If not‚ what is the correct response? 2. (Brown 4.15) Specify what ions are present in solution upon dissolving each of the following in water: a. ZnCl2 c. (NH4)2SO4 b. HNO3 d. Ca(OH)2 3. (Brown 4.16 ) Specify
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Determining the Percentage of Copper in a Copper Ore Aim: To determine the percentage of copper present in malachite. Hypothesis: That the percentage of copper in the malachite will be four percent. Materials: 2 x 250mL beaker‚ pestle‚ malachite‚ sulfuric acid‚ water‚ 2 x filter paper‚ funnel‚ filter stand‚ Safety Precautions: Wear safety glasses at all times when dealing with chemicals and apron to avoid ruining clothes. Method: Record the mass of the malachite sample. Place the malachite
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Laboratory report Aluminum Copper Alloy MSCI 300 – Thermodynamics of Materials Alexandre de Freitas Silveira Eau Claire December 18th‚ 2012. Abstract: At this experiment‚ the composition of an alloy of Aluminum Copper was analyzed via X-Ray Fluorescence. From this‚ it was possible to construct a phase diagram a make some predictions about the possible phases presents at considering the 3 samples used in this experiment‚ the samples prepared at this experiment the sample as delivered
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Identification of a Copper Compound by Percent Mass Unknown Compound: #9 Abstract: The objective of this experiment was to identify the unknown pure copper salt compound of #9. To do this‚ the mass of copper in the unknown was calculated and then divided by the mass of the whole compound to get the percent copper. The molecular weight was also calculated by dividing mass of copper compound used by moles of compound in unknown sample. The percent copper averaged out to 31.6% while the molecular
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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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Extracting Iron from Iron Ore in a Blast Furnace The metal iron and its alloy steel is one of the most important substances used by man. Humans have been discovering the metal’s uses science 3500BC. Huge quantities are used in the construction industry to construct of all kinds of vehicles. The most common from of iron known is the oxide. The Iron is extracted from the ore that contains the most amount of iron. The iron is extracted from its oxide ore called Hematite. Many things are produced
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science fiction films began portraying technology and foreign invaders as potential threats on our national security‚ as a result of the growing international tensions and rapid technological growth between nations. The 1999 science fiction film The Iron Giant by Brad Bird is a film that want to revamp the Cold War view of technology by comparing the 1950s view with the modern age audience. The story takes place in the 1950s and is about an extraterrestrial robot that becomes a concern for many people
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Iron Triangles Definition The closed‚ mutually supportive relationships that often prevail in the United States between the government agencies‚ the special interest lobbying organizations‚ and the legislative committees or subcommittees with jurisdiction over a particular functional area of government policy. As long as they hang together‚ the members of these small groups of movers and shakers tend to dominate all policy-making in their respective specialized areas of concern‚ and they
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SOLUTION MINING A Laboratory Exercise in Extracting Copper from a Synthetic Copper Ore Your Name __Mel Hine______________________ Partner’s Name __Jay Ranson____________________ Date _October 2‚ 2012____________ Introduction This laboratory exercise involves the use of dilute sulfuric acid (H2SO4) to leach copper
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The Iron Heel- Jack London The book I read titled The Iron Heel by Jack London was written as a dystopian novel. A dystopian has the opposite of what one would expect in a Utopian society. This as I see it means that what could have been a society of happiness and leisure was turned into a horrible and oppressive government. The middle class were used and bankrupted. People such as farmers were turned in serfs. This was a portrait of what might be to come from an oligarchy type of government
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