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Most metals are extracted from ore close ore A rock containing enough quantities of a mineral for extraction to be possible. found in the Earth's crust. An ore is a rock that contains enough of a ...
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Metals that are less reactive than carbon, such as iron, can be extracted by heating with carbon, or with electrolysis. They are usually extracted by heating with carbon because electrolysis uses more electricity, so is a more expensive process to use. Aluminum is the most abundant metal on Earth, but it is most commonly found as its ore ...
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A metal ore is a rock that contains enough of the metal to make it worthwhile extracting; They have to be extracted from their ores through processes such as electrolysis, …
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This process is known as reduction and is commonly used to extract metals such as iron and copper. ... Electrolysis is used to extract magnesium from its ore, while electrolysis or a chemical ...
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When copper is extracted from ore, there are impurities that need to be removed. Copper is purified using electrolysis. A direct electric current creates a chemical reaction. …
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This question is about methods of extraction. The method that is used to extract a metal from its ore can be determined by the position of the metal in the reactivity series. Table 1 contains a section of the reactivity series. Table 1
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Extracted by electrolysis of molten chloride or molten oxide. Large amount of electricity required so expensive process. Sodium: ... Iron: Hydrogen: Copper: Found as pure elements (copper may have to be extracted from it's ore by heating with carbon or hydrogen) Silver: Gold: Least reactive: You've read 0 of your 10 free revision notes …
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In concentrating copper ores, for example, pine oil is often used. The pine oil binds to the copper compounds, but not to the unwanted rocky material. The treated ore is then put in a large bath of water containing a ing agent (a soap or detergent of some kind), and air is blown through the mixture to make a lot of bubbles.
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The extraction is done by electrolysis. The ions in the aluminium oxide must be free to move so that electricity can pass through it. Aluminium oxide has a very high melting point close melting ...
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Copper oxide ore, or low-grade copper sulfide ore exploited from the surface layer or corners in the mining of copper sulfide deposits, is difficult to concentrate through mineral dressing. These copper resources can only be extracted economically by hydrometallurgical copper-making processes including mainly three procedures, …
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GCSE AQA Trilogy Combined Chemistry - Electrolysis and metals. 4.0 (1 review) Flashcards. Learn. Test. Match. What is oxidation in terms of oxygen and electrons? ... What method can be used to extract iron from its ore? Reduction using carbon. Why is gold found in its native form? It's unreactive.
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Copper ore contains copper carbonate, CuCO 3. In the first stage of the extraction process, the copper carbonate is decomposed by heating to form copper oxide, CuO, and carbon dioxide. CuCO 3 → CuO + CO 2. When 100g of copper carbonate is decomposed completely in this way, it is found that the total mass of products is 100g.
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Copper Mining: The commonest ore used in the extraction of copper is Chalcopyrite (CuFeS 2) also known as Copper Pyrites and other such sulphides. The percentage of copper in the actual ore is too low for …
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Unrefined or "blister" copper is about 99 percent pure when obtained from the ore, but it is desirable to increase this to 99.95 percent if the copper is to be used in electrical wiring. Even small concentrations of impurities noticeably lower …
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The method of extraction used relies on two things- the nature of the ore and the reactivity of the metal we hope to extract. The more reactive metals, that is, the metals aluminium and above on the reactivity series, can be extracted using electrolysis of the molten chloride or oxide of the particular metal. The metals zinc, iron and tin can ...
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(i) Given below are the steps for extraction of copper from its ore. Write the reaction involved. (a) Roasting of copper (I) sulphide. (b) Reduction of copper (I) oxide with copper (I) sulphide. (c) Electrolytic refining. (ii) …
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Why is copper not extracted by electrolysis? The extraction method used depends upon the metal's position in the reactivity series . In principle, any metal could be extracted from its compounds using electrolysis . However, large amounts of electrical energy are needed to do this, so electrolysis is expensive.
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Electrolysis uses electricity to split ionic compounds into their individual elements and is an expensive process due to the amount of energy needed. Aluminium is commonly extracted through electrolysis. The main ore from which aluminium is extracted is aluminium oxide or bauxite (Al 2 O 3). Bauxite contains aluminium oxide …
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An ore close ore A rock containing enough quantities of a mineral for extraction to be possible. is a rock that contains enough of a metal or a metal compound to make extracting close extraction ...
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Extracting copper from its ores. The method used to extract copper from its ores depends on the nature of the ore. Sulfide ores such as chalcopyrite ((CuFeS_2)) are converted to copper by a different method from silicate, carbonate or sulfate ores. Chalcopyrite (also known as copper pyrites) and similar sulfide ores are the commonest …
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Extraction of Copper. Copper is extracted from its ore by a series of procedures, including mining, crushing, heating, chemically isolating impurities, refining, and purifying. Creating useful items from raw resources like copper ore requires a lengthy process but is possible with careful preparation and attention to detail.
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There are 3 main methods of extracting metals from their ore. They are reduction of the ore with carbon, reduction of the molten ore by electrolysis, and reduction of the ore with a more reactive metal. Extraction using carbon. Metals such as zinc, iron and copper are present in ores as their oxides. Each of these oxides is heated with carbon ...
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B Both statements are correct but statement 2 does not explain statement 1. C Statement 1 is correct but statement 2 is not correct. D Statement 2 is correct but statement 1 is not correct. 26 Iron is extracted from its ore in a Blast Furnace. Hematite, coke, limestone and hot air are added to the furnace. Which explanation is not correct?
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Most metals are extracted from ores found in the Earth's crust. The method used to extract a metal from its ore is linked to the reactivity of the metal. Part of the reactivity series is shown in Figure 14. Figure 14 * Aluminium is extracted from its ore by electrolysis. Iron is extracted from its ore by heating with carbon.
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Extraction of metals by electrolysis is a method of obtaining a metal from a mineral. About Extracting Metals by Electrolysis Electrolysis is usually used to extract metals when the metal is more reactive than Carbon or the mineral is soluble in water making it cheaper to extract by electrolysis than by smelting .
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In the electrolysis process, copper sulfide ore is added to a chemical stew called electrolyte, and the chemical transformation of the copper sulfide into its constituent parts takes place on two electrodes in the electrolyte — an anode and a cathode.
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Copper ore contains copper carbonate, CuCO 3. In the first stage of the extraction process, the copper carbonate is decomposed by heating to form copper oxide, CuO, and carbon dioxide. CuCO 3 → CuO + CO 2. When 100g of copper carbonate is decomposed completely in this way, it is found that the total mass of products is 100g.
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Copper is not extracted by electrolysis. Rest other elements such as sodium, aluminium, magnesium are extracted by electrolysis. Was this answer helpful? 1. Similar Questions. Q1. Which of the following metals are extracted …
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Learn how copper is extracted from ore deposits, processed, refined and used in various applications. Explore the history, mining methods, smelting, beneficiation and recycling …
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Learn how to use electrolysis to purify copper sulfide ore by applying basic chemistry principles. This hands-on activity demonstrates the process of copper electrolysis using …
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4 CLE 2022 062043N22 3 Aluminium is extracted from its ore by electrolysis. (a) Name the ore of aluminium which consists mainly of aluminium oxide. [1] (b) State what is meant by the term electrolysis. [2] (c) Electrolysis is carried out on aluminium oxide dissolved in molten cryolite. negative electrode positive electrode aluminium oxide dissolved in …
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The alumina will be decomposed using electrolysis, a costly industrial process with the plants using vast amounts of electricity. An aluminum smelting plant uses around 200 MW of power each year, so let us remind ourselves why it is necessary to use electrolysis for the extraction of aluminum. Aluminum is a very active metal that is …
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The unusual ability of this metal to conduct electric current accounts for its greatest use today. Copper processing, the extraction of copper from its ores and the preparation of copper metal or chemical compounds for …
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Aluminium ore close ore A rock containing enough quantities of a mineral for extraction to be possible. is called bauxite (Al 2 O 3).The bauxite is purified close purified A substance that has ...
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Electrolysis close electrolysis The decomposition (breakdown) of a compound using an electric current. is commonly used to extract these metals and requires a lot of electric current (energy) to ...
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The technique used to extract a particular metal from its ore depends on its position in the reactivity series.Metals that are less reactive than carbon can be extracted by reacting it with carbon.However, metals that are more reactive than carbon need to be extracted using electrolysis.Electrolysis requires large amounts of energy for melting the …
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