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Copper

Discussion board (posts 21-40)

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Tiffany - 12/9/2004 5:59:51 PM

  anonymous - 11/7/2004 6:47:45 PM
  Who discovered Copper. Tell me please!!!!!!!!!!! I begging you!!!!!!! This is like 60% of my grade. Do you want me to fail science class???

Copper was discovered know to ancient time. So there was no one in particular that discoverd copper believe me because your chemistry teacher coundn't even tell ypu.

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anonymous - 12/9/2004 1:22:46 PM

Tell me who discovered copper please!!!!!11

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E-mail address julie - 12/6/2004 10:30:38 PM

  heLp!!! - 12/5/2004 5:01:01 AM
  what year was copper found and i dun wanna answer lk a long time ago LOL
helpp PLZZ ASAP
thx=)

about 5000 b.c.,i read it in a science book for a project im doing

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J. - 12/6/2004 4:07:37 AM

  heLp!!! - 12/5/2004 5:01:01 AM
  what year was copper found and i dun wanna answer lk a long time ago LOL
helpp PLZZ ASAP
thx=)

found approximately 10,000 years ago

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J. - 12/6/2004 4:06:47 AM

  anon - 11/10/2004 11:52:06 PM
  how did copper get its name?

the name comes from the Latin, Cuprum meaning the "metal of Cyprus"- Cyprus is an island in the Mediterranean Sea where Romans got majority of the copper.

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heLp!!! - 12/5/2004 5:01:01 AM

what year was copper found and i dun wanna answer lk a long time ago LOL
helpp PLZZ ASAP
thx=)

  Reply

E-mail address mrjake111 - 11/30/2004 12:35:22 PM

  anonymous - 11/7/2004 6:47:45 PM
  Who discovered Copper. Tell me please!!!!!!!!!!! I begging you!!!!!!! This is like 60% of my grade. Do you want me to fail science class???

im 13 and i no it was descoverd 11,000 years ago and it was descoverd my cave men by acciedent they made a fire over rocks and after the fire they found bits of sparkiling metal so we think and that was how they found copper please send back if this help so it was descoverd by cave men sorry im only 13 if there is any spelling mistakes im sorrry i hope this helps :-)

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E-mail address SuNsHiNe - 11/27/2004 9:32:05 PM

  E-mail address gary solomon - 10/30/2004 8:09:52 PM
  How much will u sell copper for.

30 dollars a pound!

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E-mail address SuNsHiNe - 11/27/2004 9:31:28 PM

is copper used for any medication such as cancer diease or sickness because if there is can u tell me if u have to inhale it inject it or chew it or eat it or we! thanks!

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E-mail address SuNsHiNe - 11/27/2004 9:28:39 PM

  E-mail address ben - 11/26/2004 6:05:38 PM
  hi do you know who found copper when and how

the person that discovered copper is unknow because it has been used for eons.

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E-mail address SuNsHiNe - 11/27/2004 9:27:41 PM

Is silver used for any medication on helping people wiht sickness or diease or cancer?

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Danielle - 11/27/2004 8:40:07 PM

I have a question i have to do a report on copper for science does anyone know or have any ideas on what are some of the "good points" that i could use?

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E-mail address ben - 11/26/2004 6:08:32 PM

  E-mail address larry - 11/21/2004 6:55:42 AM
  the person who discovered copper is unkown because it's way to long ago!

thanks larry do who know when it was found

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E-mail address ben - 11/26/2004 6:05:38 PM

hi do you know who found copper when and how

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E-mail address larry - 11/21/2004 6:57:09 AM

copper sells for $0.75 per lb.

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E-mail address larry - 11/21/2004 6:55:42 AM

the person who discovered copper is unkown because it's way to long ago!

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E-mail address anonymous - 11/18/2004 11:30:32 PM

  Erin - 11/3/2004 11:25:40 PM
  Heres an interesting fact:
police got the nickname "cops" or "coppers" because the buttons on their uniforms were made from copper!

how the hell do u find these things out i think that ur all just lieing

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E-mail address anonymous - 11/18/2004 11:19:23 PM

what type of copper cost 30$ a pound because if it was that expensive then we could just get like 200-300 pennys in and get 30$ for it? it doesnt make sense so i need to no how much it cost

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E-mail address Rhetta Smith - 11/17/2004 3:07:16 AM

what is copper''s phase at room temperature!? (solid liquid and gas)

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E-mail address shelly - 11/16/2004 6:04:47 PM

  anonymous - 11/7/2004 6:47:45 PM
  Who discovered Copper. Tell me please!!!!!!!!!!! I begging you!!!!!!! This is like 60% of my grade. Do you want me to fail science class???

Archaeological evidence suggests that people have been using copper for at least 11,000 years. Relatively easy to mine and refine, people discovered methods for extracting copper from its ores at least 7,000 years ago. The Roman Empire obtained most of its copper from the island of Cyprus, which is where copper's name originated. Today, copper is primarily obtained from the ores cuprite (CuO2), tenorite (CuO), malachite (CuO3·Cu(OH)2), chalcocite (Cu2S), covellite (CuS) and bornite (Cu6FeS4). Large deposits of copper ore are located in the United States, Chile, Zambia, Zaire, Peru and Canada.

Used in large amounts by the electrical industry in the form of wire, copper is second only to silver in electrical conductance. Since it resists corrosion from the air, moisture and seawater, copper has been widely used in coins. Although once made nearly entirely from copper, American pennies are now made from zinc that has been coated with copper. Copper is also used to make water pipes and jewelry, as well as and other items.

Pure copper is usually too soft for most uses. People first learned about 5,000 years ago that copper can be strengthened if it is mixed with other metals. The two most familiar alloys of copper are bronze and brass. Bronze, the first alloy created by people, is a mix of copper that contains as much as 25% tin. Early people used bronze to make tools, weaponry, containers and ornamental items. Brass, a mix of copper that contains between 5% and 45% zinc, was first used about 2,500 years ago. The Romans were the first to make extensive use of brass, using it to make such things as coins, kettles and ornamental objects. Today, brass is also used in some musical instruments, screws and other hardware that must resist corrosion.

Hydrated copper sulfate (CuSO4·H2O), also known as blue vitrol, is the best known copper compound. It is used as an agricultural poison, as an algicide in water purification and as a blue pigment for inks. Cuperic chloride (CuCl2), another copper compound, is used to fix dyes to fabrics. Cuprous chloride (CuCl) is a poisonous white powder that is chiefly used to absorb carbon dioxide (CO2). Copper cyanide (CuCN) is commonly used in electroplating.


Estimated Crustal Abundance: 6.0×10-1 milligrams per kilogram

Estimated Oceanic Abundance: 2.5×10-4 milligrams per liter

Number of Stable Isotopes: 2 (View all isotope data)

Ionization Energy: 7.726 eV

Oxidation States: +2, +1

i hope this answers your question

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