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extracting gold from ore facts yahoo answers

how to extract gold from its ore? Yahoo Answers

Best Answer: The cheapest way is cyanide leaching. A basic pH solution of cyanide is dripped over a pile of gold ore. The solution dissolves the gold out of the rocks and can then be separated from the solution. This process is safe at high pH. If the solution is acidic, it will give off cyanide fumes

To extract gold from its ore, the ore is

To extract gold from its ore, the ore is treated with sodium cyanide solution in the presence of oxygen and water.? 4 Au s 8 NaCN aq O2 g 2 H2O l 4 NaAu CN 2 aq 4 NaOH aq a Determine the mass of gold that can be extracted if 26.5 g sodium cyanide is used.

how do you extract gold from rock ore by hand by yourself

Yahoo Canada Answers How do you extract gold from rock ore by hand by yourself ? Follow . 1 answer 1. Report Abuse. Are you sure you want to delete this answer? Yes No. How I can extract gold from rock? How I can extract gold from rock? More questions.

method to extract metal from iron ore? Yahoo Answers

Best Answer: Methods of extracting metals The Earth's crust contains metals and metal compounds such as gold, iron oxide and aluminium oxide, but when found in the Earth these are often mixed with other substances. To be useful, the metals have to be extracted from whatever they are mixed with. A metal ore

How much gold can mercury absorb

At time mercury was used to extract metallic gold from gold ore. The ore was crushed to powder, and washed over a copper sheet covered in mercury. Copied from Kieth T from Yahoo answers . How

Please oh pleas help me with chemistry = , giveing out

To extract gold from its ore, the ore is treated with sodium cyanide solution in the presence of oxygen and water. Yahoo Malaysia Answers Please oh pleas help me with chemistry = , giveing out points ? Please help me with these chemstry questions they are due tommrow night and i dont get anything or any of this, can you please answer it

Extraction of Gold by Electrolysis.how? Yahoo Answers

The material that you want to separate the gold from is the cathode, a piece of the pure metal, would be the anode. A 1/10 ounce, or less piece of gold would do very well since it can be beaten very thin, to be the anode. A Gold Chloride, or other gold based electrolyte would be the medium of transfer.

How Is Gold Extracted From Gold Ore? Sciencing

Gold is usually found alone or alloyed with mercury or silver, but can also be found in ores such as calaverite, sylvanite, nagyagite, petzite and krennerite. Most gold ore now comes from either open pit or underground mines. The ores sometimes contain as little as 5/100 of an ounce of gold per ton of rock. In

Gold and Iron extraction ? Yahoo Answers

Yahoo UK and Ireland Answers Gold is often extracted from ores that contain very small percentages of the metal, but iron is only extracted from ores with a large percentage of the metal. Explain why

how to extract pure gold out of gold alloy ? Yahoo Answers

example : 22k gold -mixture gold and copper, how to extract gold or separate gold and copper. Answers. Relevance. Rating Newest Oldest. Best Answer: welll, To extract gold out of ore or other metals, one way people have used for a while and still use is adding cyanide to the mixture, which causes the gold to ionize and go into solution.

Please oh pleas help me with chemistry = , giveing out

To extract gold from its ore, the ore is treated with sodium cyanide solution in the presence of oxygen and water. Yahoo Malaysia Answers Please oh pleas help me with chemistry = , giveing out points ? Please help me with these chemstry questions they are due tommrow night and i dont get anything or any of this, can you please answer it

how much is gold ore worth per gram? Yahoo Answers

If your bag weighs, say, ten pounds 1/200 of a ton then the amount of gold in it is probably in the order of 0.015 to 0.030 grams - or at todays massive gold price about $0.40 to $0.80, assuming that you could extract it for free. Gold ores often contain pyrite, in quantities of up to a few percent.

How much gold can mercury absorb

At time mercury was used to extract metallic gold from gold ore. The ore was crushed to powder, and washed over a copper sheet covered in mercury. Copied from Kieth T from Yahoo answers . How

Can you get the gold from pour mercury

At time mercury was used to extract metallic gold from gold ore. The ore was crushed to powder, and washed over a copper sheet covered in mercury. Copied from Kieth T from Yahoo answers

How does one extract silver dissolved in aqua regia solution?

Yahoo India Answers How does one extract silver dissolved in aqua regia solution? aqua regia is a combination of hydochloric acid and nitric acid. it can dissolve gold and silver. once any of these metal is dissolved, how can one get it back ? Anyone know how to extract gold from aqua regia solution?

extraction of gold in rock

Gold extraction Wikipedia. 2019-8-7 · Gold extraction refers to the processes required to extract gold from its ores. This may require a combination of comminution, mineral processing, hydrometallurgical, and pyrometallurgical processes to be performed on the ore. 1

What is the current price of mercury? Yahoo Answers

Yahoo New Zealand Answers What is the current price of mercury? In price/pound or price/ounce please. 1 following . 2 answers 2. Actually, mercury is instrumental in extracting gold from gold ore. I think the price of mercury is about $600 USD per flask with a flask being 34.5 kg or 76 lbs .

Mining pros and cons? Yahoo Answers

There can be massive "cons" to the environment - the processing of the ore can require a chemical process - Gold mining for example, also con in the way that the landscape is altered in open cast mining. The "spoil" stuff taken out of earth can make large unstable pile - see abergfan disaster.

Chemistry: Metals Flashcards Quizlet

Start studying Chemistry: Metals. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Unreactive metals such as gold and silver are found uncombined in the earth's crust How can metals be extracted from their ores? Metals can be extracted from their ores by heating, heating with carbon or carbon monoxide or

Chemistry for Kids: Elements

Recycling aluminum takes only around 5% of the energy it takes to extract aluminum from the ore bauxite. It has no known function in biology. An alternative spelling often used for the element is "aluminium". In the mid-1800s aluminum was more expensive than gold.

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