equations Part I: Reaction between zinc and iodine Watch the Video. http://www.youtube.com/watch?v=xT9V7Y1iKYc Observations: Describe what happened when the water was added. A reaction happened and the iodine exploded into a purple gas Questions and conclusions: 1. Balance the equation‚ if necessary‚ for the reaction between zinc and iodine. Zn + I2 ZnI2 It is balanced 2. Classify the reaction that occurred between the zinc and iodine. redox 3. What evidence
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Professor: José Tudela Martins Students: João Pedro Jesus‚ Maria Kostyunina & Marta Gonçalves Agenda • • • • • • Problem Statement Antamina Project Overview Assumptions Prices Forecast DCF Valuation: 3 Scenarios Options Valuation Real Options Option to Abandon • Re‐valuation according to changes Expropriation Block Funds • Main Conclusions Location of Antamina Problem Statement How much is Antamina worth? Impact of a 5% per year risk of expropriation or a possibility of a two
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wrong dosage of zinc she was 330 milligrams instead of 330 micrograms of zinc. This meant that 1‚000 times more zinc than had been prescribed was transfused into baby Alyssa. * What do you think was one of the main reasons for the error? The two pharmacist technicians fail to reset the machine and to check Goff’s calculation. The safety stop on the mixing machine had not been set‚ and a technician reading the order had replenished the machine 11 times with zinc; using 48 vials of zinc total which
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readings. The combination that provided the highest voltage was Zn-C(Zinc and Carbon)‚ with an average of 1.02 volts. The second highest combination was Cu-Zn(Copper and Zinc)‚ which produced a mean of .86 volts. The third highest reading was C-Mg(Carbon and Magnesium)‚ with a voltage of .67. The fourth highest combination belonged to Cu-Mg(Copper and Magnesium)‚ with .52 volts. The fifth highest combination of electrodes was Zn-Mg(Zinc and Magnesium)‚ which created .37 volts. The sixth
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|Vitamin B6 - 0.075 mg | | | |Copper - 0.049 mg |Vitamin C - 8.4 mg | | | |Zinc - 0.07 mg |Vitamin E - 0.33 mg | | | |Also contains a trace amount of other |Vitamin K - 4 mcg | | |
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03-11-2013 Experiment: Chemical reactions‚ and Equations Materials: 3 mL of copper(II) sulfate solution. 5 mL of 6 M HCl piece of zinc wooden splint test tube Bunsen burner 3 mL of zinc chloride solution. pentahydrate distill water 0.1 g of ammonium dichromate
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Abstract a. Purpose To lessen the consume of electric charge b. Procedure We insert copper and zinc electrodes in to the potato‚ close but not touching each other. We use Clip leads to connect our electrodes to the Multimeter to measure voltage between two electrodes or current passing through the multimeter. For this experiment we removed the shell of a broken AA battery for our Zinc electrode. (Make sure to test your multimeter by connecting its Positive and Negative wires to each other
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reaction (ΔHfθ) between zinc and copper sulphate solution‚ giving full practical details. Aim To determine the enthalpy change for the reaction between zinc and copper sulphate. Zn (s) + CuSO4 (aq) ZnSO4 (aq) + Cu (s) Introduction In the study of energy (thermodynamics) the system refers to the reacting chemicals (zinc and copper sulphate solution) and the surroundings is everything else (atmosphere‚ container‚ temperature probe). By adding an excess of zinc powder to a measured
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composition equation we were able to determine that the second metal in the penny is Zinc with a density of 7.14g/mL. Using scholarly online sources‚ I was able to confirm this data concerning the second metal to be correct. The United States Mint’s website states that in 1962‚ the cent’s tin content was removed making the composition of the cent 95% copper and 5% zinc. In 1982‚ the composition was changed to 97.5% zinc and 2.5% copper (United States Mint). The U.S. Department of Treasury stated that
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section ii) Nickel section iii) Silver section Seven color section: Parts that are made with mild steel are taken in this shop. At first zinc coating is provided to the parts and then these parts are seven colored. There is a single room provided for this section. Parts are taken to the room after cleaning and then stored in the table. There are three zinc tanks inside the room although there is a tank for seven color it remains unused. It is done outside the room. Acid cleaning is also done outside
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