does anyone know what products copper is utilized in ancwer plz thank u?
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pipes, electrical wiring, coins
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Copper can be extracted from its ore by:\n\n1. Traditional mining\n (a) underground - sinking a vertical shaft into the Earth to an appropriate depth and driving horizontal tunnels into the ore.\n(b) open pit  - 90% of ore is mined by this method. Ores near the surface can be quarried after removal of the surface layers.\n\n2. Leaching\n\nThe ore is treated with dilute sulphuric acid. This trickles slowly through the ore dissolving copper to form copper sulphate. The copper is recovered by electrolytic refining. Advantages of this process are:\n\n    * much less energy is use than in traditional mining\n    * no waste gases are given off\n    * it can be used on ores with as little as 0.1% copper - for this reason, leaching extraction is growing in importance.\n\nA typical ore contains only 0.5% to 2.0% copper. \n\nConcentrating the ore :-\n\nThe ore is crushed, ground and then enriched (concentrated) by Froth Flotation.\n\nThe powdered ore is mixed with a special paraffin oil which makes the copper mineral particles water repellent. It is then fed into a bath of water containing a foaming agent which produces a kind of bubble bath.\n\nWhen jets of air are forced up through the bath, the water repellent copper mineral particles are picked up by the bubbles of foam. They float to the surface making a froth. The unwanted waste rock (gangue) falls to the bottom and is removed.\n\nThe froth is skimmed off the surface and the enriched ore (mainly the copper mineral) is taken away for roasting. The mixture of water, foaming agent and paraffin is recycled.\n\nAfter this stage the enriched ore now contains about 25% copper by mass.\n\nAlso check other details at  -\n\nhttp://en.wikipedia.org/wiki/Copper_mining
878521
Copper. It is so brilliant
467507
Steel, copper, and brass (for casings)
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copper, silver, aluminum, lead, magnesium, platinum and tungsten
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Below is a link to a practical for finding the % copper in pennies.  The same method will work using brass in place of pennies.\n\nhttp://www.creative-chemistry.org.uk/alevel/module5/documents/N-ch5-17.pdf
723937
copper. because it can oxidize easier. That is why statue of liberty is green.
676026
Wild guess here... a dihydrate of copper chloride.\n\nSecond guess would be copper sulfate, possibly from the manufacturing process.
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Process Issue.\n\nThe Metal prior to Plating must be free of all contaminants.\n\nHave the Process and quality staff examine the Brass prior to the Plating and do a Controlled experiment with a sample size run.\n\nPerhaps a contaminate is entering the Process at a stage in the Handling of the Brass.\n\nProcess control must be verifiable at all times.\n\nClosing down the Line is costly and very expensive. But, The Product that the customer receives must be defect free.\n\nPlease review the following URL:\n\nhttp://www.finishing.com/96/76.shtml\n\nContact me by email, if I can offer addition assistance.\n\n\nRegards.
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The is no specific wet test that would involve reagents that you would be able to get.  They are pretty exotic reagents.  Much cheaper would be to take a sample to a local lab and pay $25 or so for a copper test.\n\nIf there are no other metals believed present, you can do this.  Take the solution or solids and acidify until dissolved. Filter any solids left and decant.  Add ammonium hydroxide (15M) to the decant until the solution is slightly basic.  If the solution is not blue, copper is not present in more than trace levels.  If it is blue, add acetic acid (5M) dropwise until the blue color just disappears.  Then add 2 drops of 0.2M K4Fe(CN)6.  The formation of a red solid confirms the presence of copper.  Note this only works if copper is the only metal above impurity levels.\n\nTo see if chloride is present gets very complicated by wet methods.
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Copper is an essential plant micronutrient with a wide range of other agricultural applications; however, as is the case with many plant nutrients, an excess of copper can be toxic to plants and other organisms. Fungi are particularly susceptible to copper and for this reason, copper is frequently used as a fungicide and wood preservative. Many invertebrates, algae, and bacteria are also sensitive to copper and it has can be used against these pests as well. Because copper is a mineral element, it can accumulate in soils. Low levels do not pose a risk to soil life and may even enhance plant growth if soil copper levels are deficient; however, higher levels can be detrimental to soil life, particularly earthworms. They can also be toxic to fish. Copper compounds must also be handled carefully since they can present a health risk for humans. \n\nCopper is a restricted input in organic systems. Its use must be monitored to avoid build up of copper in soil. Many certifying bodies, particularly in Europe, are beginning to re-assess its use in organic systems. \n\nThere are many forms of copper available for use. Copper sulphate, often referred to as "bluestone", is the most common form of copper allowed for use in organic systems. It is a finely ground powder that dissolves relatively quickly in water and should be stored in a dry place to avoid clumping. Copper sulphate is frequently combined with hydrated lime to make what is known as a Bordeaux Mixture. Because hydrated lime is not permitted under organic standards, Bordeaux mix is frequently prohibited for use in organic systems. Other approved forms are copper hydroxide and copper oxychloride. Prohibited forms of copper are copper ammonia base, copper ammonium carbonate, copper nitrate and cuprous chloride. \n\nAs a fungicide, copper is now being replaced by newer biological agents, such as Bacillus subtilis, which directly kill fungal pathogens, or by fish emulsions and compost teas, which act to stimulate a plant’s own defence against pathogens. \n\nCopper products are readily available at farm supply stores.
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high velocity copper covered lead
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Hydrogen peroxide can oxidize copper metal on the surface of the penny by displacing it as copper(II) ions.  See link for detail explanation.
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Well, for a start your equation shows copper(II) sulphide, not sulphate, and your equation is wrong even then.  That makes a bit of a difference!\n\nLet us imagine that you've got the formula right, but the name wrong.\n\nThe equation is simply Cu + S ---> CuS\n\nThen 64g will give (64+32)g.\n\nThus 64g will give 96g.\n\nSo 64 x (200/96)g of Cu will give 200g of product.
190092
Dissolve salt in vinegar.  To clean copper wipe on with a cloth.  To clean brass, submerge the brass piece in a bath of salt and vinegar.  There is an electric reaction where the ions of sodium from the salt displaces the copper/ brass.  Do not allow to dry on. \n...or to clean copper pans, use ketchup and let set for awhile then rinse off.\n...or soak in Worcestershire sauce.\n...or dip half a lemon in kosher salt and rub well. Then polish with a soft cloth and beeswax for a deep, lasting copper shine.
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Hi. Iron, carbon, silicon, copper, oxygen (as part of silicon dioxide), hydrogen (as part of plastic).
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I know of no copper-based solar cells.  They involve some silver alloys deposited on silicon semi-conductors.  If you need a copper based cell, try a strip of copper and a strip of zinc in a potato or lemon.  It will make enough power for an LCD cheapo clock or watch to run off for a long time.  \n\nThe chemistry, heat, and equipment needed to generate semiconductor material is way beyond the home-experimenter's abilities and budget.