Aim: To compare the reactivity of various metals by observing their reaction with hydrochloric acid. Materials: 2 M hydrochloric acid Detergent Test tubes and test tube rack 0.5 pieces of magnesium‚ aluminium‚ iron‚ zinc and cooper Sand paper Ruler Timer Bench mat Method: 1. The surface of the magnesium was cleaned with a piece of sandpaper 2. The Magnesium was placed into a test tube 3. Three Drops of detergent were added to the test tube 4. 2cm of hydrochloric acid was added
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Mining Fiscal Regime: H2 2014 ©reportscue Synopsis: Timetric’s Philippines’ fiscal regime report outlines governing bodies‚ governing laws‚ mining permit and contracts‚ mining rights and obligations‚ and tax-related information on seven commodities: iron ore‚ coal‚ copper‚ zinc‚ gold‚ nickel and chromium. Report Overview: The Philippines has a variety of mineral resources‚ including copper‚ nickel‚ cobalt‚ and gold. Deposits are categorized into metals and non-metals. The mining industry is governed
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building materials device class. Rotary kiln press materials handled can be divided into cement kiln‚ metallurgy and chemical kiln and kiln. It is mainly used in metallurgy and chemical kiln steel metallurgical industry lean iron ore magnetized calcination‚ Chromium and nickel and iron oxide calcination‚ Refractory plant calcination high aluminium vanadium and soil ore and aluminum plant calcination clinker‚ aluminum hydroxide‚ Chemical GeKuangSha and chromium ore pellets such minerals. Kiln (namely active
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has. Large proportion and large size steel balls should be added to grind high hardness and dense structure mines. To effectively grind the small mines‚ large amount of small balls are needed to increase the ball hit number in unit time. Steel iron ball is the grinding medium of ball mill and functions by collision between ball mill and steel ball‚ steel ball and materials. According to the different ball casting technology‚ different materials can be chosen. In domestic and abroad production
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The dry type magnetic separator is commonly used iron ore and manganese ore beneficiation equipment. It is the mainstream strong magnet separator‚ which is specialized in processing dry magnetic minerals. The wet type magnetic separator use liquid diluents to improve separation efficiency. The dry type magnetic separator requires that the material must be dry‚ and can move freely between the particles. Or it will affect the separation result‚ and even cannot separate materials. The magnetic system
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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 am alloy. The mechanical
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HEMIN TEST Introduction Ludwig Karl Teichmann was a Polish anatomist and physician who made an enduring contribution to forensic science with his discovery of the Hemin test or Teichmann test for hemoglobin. Also called the Teichmann crystal‚ this is a test that is used on dried stains to determine whether or not blood is present. Dr. Teichmann made his forensic discovery in 1853. His microcrystalline test remains in use today as a means of identifying whether or not dried stains at a crime
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guess paper 1. Express the rate of following reaction in terms of disappearance of hydrogen in the reaction. 3H2(g) + N2(g) 2NH3(g) 2. What is peptisation? 3. Write Reimer Tiemann reaction. 4. Why is CO stronger ligand that Cl-. 5. Write structure of 2-(2-Bromophenyl)butane. 6. Complete the reaction C6H6+R COCl 7. Why pentahalides more covalent than trihalides? 8. What is difference between nucleoside and nucleotide? 9. Explain the following- (a) Gattermann Koch
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In chapter one of The Iron Cage‚ Rashid Khalidi sets the stage for the premise of his book‚ by examining the conflicting evidence of the Palestinians’ plight. In order to do so‚ the narrative begins in 1948‚ following the eviction of more than half of the Arab Palestinian population as a result of the Arab – Israel conflict of that year. Khalidi goes on to enumerate a few of the respective differing Arab and Israel accounts of how it was that a people that once constituted the majority of the population
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things that we will have to make sure when we are planning to go for the best wheel refurnishing to ensure that the car is in proper working condition. We need to understand that it is not always that we can wash the car to maintain it‚ since it is made iron‚ you will also have to make the most of the oiling processes to get the best result and ensure that you get the best of the servicing done. There are many factors like road surfaces‚ potholes‚ tight parking spots‚ minor accidents and the adverse weather
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