Chemistry: Research task 1 5.1- define the terms mineral and ore with reference to economic and non-economic deposits of natural resources The term ‘ore minerals’ is commonly referred to as economic minerals Mineral: naturally occurring compounds. Rocks are mixtures of various minerals. Most minerals are lattice structures‚ both ionic and covalent. Economic minerals have been divided into two main categories: Metalliferous minerals- mined to extract a metal Industrial mineral- either has
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project value addition done by financial manager. • Southport Indonesia (SI)‚ a wholly-owned subsidiary of Southport Minerals‚ entrusted with a responsibility of mining the copper ore at Firstburg‚ Indonesia. o Initial experiments established that Firstburg mine contained 33 million tons of copper ore with an average copper content of 2.5%. o Bechtel conducted the cost and feasibility studies and informed that the total development cost would be $120mil and could be operationalized by end of 1972
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following: (a) Calcium Fluoride (b) Iron (II) Bromide Name to kinds of cells (elements) of xylem. Two wires‚ one of manganin and the other of copper have equal lengths and resistances. Which one of these wires will be thicker? What does ‘slaking of lime’ stand for? Why is there a hissing sound during this process? Write the chemical equation for the reaction involved. What is autonomic nervous system? What is the function of earth wire? Why is it necessary to earth the metallic appliance? Give
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Copper toxicity From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search Copper toxicity | Classification and external resources | A Kayser-Fleischer ring‚ copper deposits found in the cornea‚ is an indication the body is not metabolizing copper properly. | ICD-10 | T56.4 | ICD-9 | 985.8 | MedlinePlus | 002496 | Copper toxicity refers to the consequences of an excess of copper in the body. Copper toxicity can occur from eating acid foods cooked in uncoated copper cookware
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------------------------------------------------- Electroplating Electroplating is a plating process in which metal ions in a solution are moved by an electric field to coat an electrode. The process uses electrical current to reduce cations of a desired material from a solution and coat a conductive object with a thin layer of the material‚ such as a metal. Electroplating is primarily used for depositing a layer of material to bestow a desired property (e.g.‚ abrasion and wear resistance‚ corrosion protection
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from getting rid of extra copper. A small amount of copper obtained from food is needed to stay healthy‚ but too much copper is poisonous. In Wilson disease‚ copper builds up in the liver‚ brain‚ eyes‚ and other organs. Over time‚ high copper levels can cause life-threatening organ damage. Pathophysiology and clinical features of Wilson disease Wilson disease is an autosomal recessive inherited disorder of copper metabolism resulting in pathological accumulation of copper in many organs and tissues
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Respectively‚ in Figure 3‚ a large deviation amongst the initial and final quantity of copper‚ this implies that the rest of the mass that had diminished‚ was greater than the final product. These findings correlate to Figure 2 calculations as‚ the % yield was reasonably insignificant of 49.12%. The initial mass of Copper was‚1.598g; whereas‚ the final amount of copper was‚ 0.785g. This suggests that the 0.813 g of copper could have transitioned into Hydrogen gas‚ and therefore contradicting the hypothesis
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How reaction rate varies with sodium thiosulphate concentration Background information Sodium thiosulphate and hydrochloric acid are both colourless liquids‚ when the two reactants are reacted together they produce sulphur. The sulphur that is produced from the reaction changes the solution to yellow and cloudy‚ this is a precipitation reaction‚ where a two solutions react and a solid forms in the solution‚ the solid is said to precipitate out. Some reactions will occur quickly such as fireworks
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Otzi the Iceman Otzi the Iceman is a nickname given to a very well preserved natural mummy of a man from Europe during the European Copper Age. He is the oldest natural human mummy preserved by freezing and he gives an extraordinary view of the European Copper Age. Otzi the Iceman aided us with an exceptional understanding of the European Copper Age from the equipment he was carrying‚ the cloth he was wearing‚ and the physical remains of his body. A set of well preserved equipments were discovered
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a thing is made or composed; component or constituent matter. [1] Materials commonly used in today’s industry or in society are commonly encountered materials‚ for example‚ wood (timber)‚ concrete‚ brick‚ steel‚ plastic‚ glass‚ rubber‚ aluminums‚ copper‚ paper and ceramics. Generally‚ materials are classified into three types of groups; mainly metals‚ polymers and last but not least ceramics. Each and every type of the aforementioned group has their very own specialties‚ properties‚ structures
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