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In the old days it was extracted from mines with pick axes. Gold nuggets were dug from veins of crystal quartz that often included silver, Mercury, and lead.
Today most of that ore has been tapped, and new methods are employed. The gold is no longer even visible to the naked eye--it is dust, scattered throughout an ore body in a zone. Strip mined ore is piled on slanted V shaped sheets of plastic where it is sprayed with a solution of cyanide. The cyanide bonds with the gold which settles into a pond. The pond is drained, the rich ore scooped up and further processed to recover the gold.
A profitable ore body may contain as little as 0.02 oz of gold per ton of ore. I have toured several gold mining operations in northern Nevada, and have staked claims for other mines there.
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∙ 15y ago
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An Olympic medal contains 71.5 percent of gold by mass How much gold could be extracted from a medal that weighs 115 grams Answer in units of mol?
0.417 mol could be extracted.
How is gold extracted now compared to 100 years ago?
100 years ago gold was quite simply panned for in river beds. Also it was mined by hand, miners used to seek a gold seam. Gold mines now use advanced mechanical tools to recover material that gold may be in. Gold can now be extracted from these materials by chemical methods.
What mass of 9999 pure gold do you get from 1 gram of gold ore?
The mass of 9999 pure gold you get from 1 gram of gold ore is minute. For example, 30g of gold can be extracted from an 860kg block of gold ore.
Why were gold and silver among the first metals to be discovered?
they are so unreactive, they do not need to be extracted from their ore.
Why is petroleum called black gold?
because when crude oil is extracted from the land it is black in color. People call it gold because of its oils and value . It is very difficult to find. So it is called Black Gold.
What metal is extracted from gold?
Metal cannot be extracted from Gold, as Gold itself is a metal.
Where is gold extracted?
Gold is extracted from the earth itself, near the place underground where coal miners work.
Is gold being or has gold been extracted from seawater?
Gold has been extracted from seawater, but the cost is not worth the effort for the very small amount that can be obtained.
What minerals are obtained from gold and copper?
Gold and Copper are chemical elements. No "minerals" can be extracted from them other than 'gold' and 'copper'. They can be extracted from the minerals or 'ores' named in the other answers herein.
How is gold extracted form nature?
Something else.
What did the miners do when the gold is once extracted from the ground?
the pounded by there and not boiled
Can Gold be extracted from sea water?
yes yes yes
An Olympic medal contains 71.5 percent of gold by mass How much gold could be extracted from a medal that weighs 115 grams Answer in units of mol?
0.417 mol could be extracted.
What did they do with gold once they extracted from the ground?
Gold that is extracted from the earth is in its ore form, meaning that the gold is mixed with other minerals in the rock. The gold ore is processed by breaking it up into small pieces and heating it to remove the gold, which is extremely soft and melts at a very low temperature, leaving the rock behind.
What are three commercial products extracted from seawater?
Salt, water, and gold.
How much gold is extracted per ton of ore?
1 ounce
How did the people get the gold out of the mines and streams?
Fine dust or placer gold is panned in streams to collect gold and in mines gold ore is blasted out and by metallurgical process gold is extracted.
