Determining the Enthalpy Change for a Redox Reaction Criteria Assessed: Background Design Research Question What is the enthalpy change between the reaction of Zinc reducing Copper II ions? Purpose Determine the change in enthalpy for the redox reduction of zinc reducing Copper II ions. Independent Variable Dependent Variable The change in temperature Controlled Variables Materials/ Apparatus * Zinc powder * 2‚ Foam cups * 10 cm3 pipette * stopwatch * 1.00 M Copper
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Chemistry Essay On Metals Iraj Malik 12/10/2012 MYP-5 The International School A metal is defined as a chemical element that is malleable and ductile‚ usually solid‚ has a characteristic luster‚ and is a good conductor of heat and electricity‚ e.g. copper or iron. Metals form oxides that are basic‚ they are good reducing agents and metals have lower electro negatives.There are many properties of metals. The chemical properties are that they can combine together with other metals to form
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Alum Synthesis: The Chemical Process of Recycling Aluminum Introduction By recycling aluminum cans‚ the costs and energy savings are dramatically more resourceful and efficient than producing aluminum from what it is naturally found in‚ bauxite ore. The process of recycling aluminum to produce potassium aluminum sulfate‚ a common alum‚ will be done through a serious of chemical reactions. Through this reaction‚ percent yield will be determined. Materials and Methods The mass of a 250 mL
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Although I love science‚ I encountered more problems in this subject than any other. Recently‚ I was assigned a lab. The purpose was to let Copper Sulfate react with Aluminum and obtain Copper. Before the experiment‚ I set up the stoichiometric equation carefully‚ predicting the production of Copper using my assigned mass of Copper Sulfate. Additionally‚ I intentionally made Copper Sulfate an excess in my equation‚ since it would be dissolved in water and I would only have to collect Copper at the
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Meanwhile‚ gold slag can also be made into a new wall tiles after jaw crusher crushing‚ and vibration screen screening‚ which not only supply building materials‚ but also avoid environmental pollution concrete mixing plant‚ it greatly conform to the national energy conservation and environmental protection theme.Henan Daswell Machinery Co.‚ Ltd‚is a professional manufacturer and trader specializing in the research‚ development and production of construction machinery for nearly 30 years. Our main
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Mineral powder briquetting machine is suitable for industrial gas making‚ boiler coal briquette‚ cold pressing‚ coal briquette for civilian use‚ civil metallurgy‚ medicine‚ civil refractory material. It is mainly used for coal egg production‚ all kinds of powder metallurgy cold pressed pellet production. Usually the powdery material‚ must press the ball is the need briquette machine to complete. Such as: coal‚ coke powder or black non-ferrous metal ore‚ iron oxides and dust‚ sludge‚ refractory material
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Ankit Shingala Dr. Campagnolo Chemistry H September 24‚ 2013 Lab on Density of Four Metals Conclusion In this lab we studied the densities of four different metals using a caliper‚ a digital scale‚ and a calculator. Three metals were pure elements like copper‚ iron‚ and aluminum. The fourth metal was an alloy which was brass. The purposes of this lab were to demonstrate that different metal elements have different densities‚ and that alloys have densities somewhere between those elements that
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Kendric Ivan A. Moneva Grade V – St. Joseph A gemstone or gem (also called a precious or semi-precious stone‚ a fine gem‚ or jewel) is a piece of mineral‚ which‚ in cut and polished form‚ is used to make jewelry or other adornments. However certain rocks (such as lapis lazuli)‚ or organic materials that are not minerals (such as amber or jet)‚ are also used for jewelry‚ and are therefore often considered to be gemstones as well. Most gemstones are hard‚ but some soft minerals are used in jewelry
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Stretch forming is performed on a stretch press‚ in which a piece of sheet metal is securely gripped along its edges by gripping jaws. The gripping jaws are each attached to a carriage that is pulled by pneumatic or hydraulic force to stretch the sheet. The tooling used in this process is a stretch form block‚ called a form die‚ which is a solid contoured piece against which the sheet metal will be pressed. The most common stretch presses are oriented vertically‚ in which the form die rests on a
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Radha Shukla Determination of the Empirical Formula of Silver Oxide Will/Radha College Chemistry 9/12 – 9/13 9/17 The purpose of this lab is to use one of the ways to identify different compounds and be able to tell them apart. Based off of experimentation‚ the empirical formula of the given silver oxide will be determined. Materials: Chemicals: Silver Oxide‚ 0.5g Equipment: Balance‚ 0.001-g or 0.0001-g precision Bunsen Burner Clay pipestem triangle Crucible and cubicle lid‚ 15-
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