ok i think it's a compound but i don't know.... i know that the amount of gold used in jewelry is made from like 10 to 22 karats?
help me out
2007-12-12
14:19:54
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8 answers
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asked by
katiebug
2
in
Science & Mathematics
➔ Chemistry
if it is a mixture ( which i think it is).. why
2007-12-12
14:31:01 ·
update #1
a solution is not on of the answers in my book??
2007-12-12
14:36:12 ·
update #2
Neither. the gold in your jewelery is not pure, (pure gold is 24 karats) it is mixed with copper. and by looking at gold, you can tell that the two elements are distributed evenly. This means the answer to your question is that Jewelers' Gold is a SOLUTION, not a mixture or a compound. (a compound is two or more ionically bonded elements, such as NaCl, or table salt.)
2007-12-12 14:31:45
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answer #1
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answered by ps3rcf 2
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It depends on which alloying elements are present in the gold, but lacking other information the best answer is that it's a mixture.
A solution is a special kind of mixture (it need not be ionic).
Gold is usually alloyed with silver and copper (and sometimes other metals) for jewelry. These alloys are generally simple mixtures.
Metals can form intermetallic compounds, of course, and there is evidence for the formation of several compounds between gold and copper (These are Cu3Au, CuAu, and CuAu3). From looking at the phase diagrams, it does not appear that compounds form between gold and silver, or between copper and silver. Therefore, it's fair to say that gold jewelry alloys are mostly solid solutions (mixtures), which may contain some gold-copper intermetallic compounds. They would still be mixtures, though, even if the compounds were present along with the metals themselves.
And yes. Pure gold is 24K. An alloy that's 50% gold by weight is 12K; 75% is 18K, etc.
I hope this helps you out.
2007-12-12 14:58:53
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answer #2
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answered by Shadow 6
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Is Gold A Mixture
2016-10-06 21:56:23
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answer #3
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answered by Anonymous
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This Site Might Help You.
RE:
is gold jewelry a compound or a mixture...?
ok i think it's a compound but i don't know.... i know that the amount of gold used in jewelry is made from like 10 to 22 karats?
help me out
2015-08-07 16:55:56
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answer #4
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answered by Rachael 1
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18k gold jewelry is an alloy of metals that are elements, but not molecules or compounds Thus it is mixture of elements water solution of NaCl water is a compound sodium chloride is a compound Thus it is a mixture of compounds H2 gas compound, as single atoms of hydrogen don't exist at STP. Glucose compound of hydrogen, carbon, and oxygen Air contains nitrogen molecules N2 - compound contains oxygen molecules O2 - compound contains carbon dioxide molecules CO2 - compound contains argon - element so air is as you describe Coke Cola I figure every ingredient in Coca Cola is a molecule of two or more different elements. Water dissolved carbon dioxide phosphoric acid high fructose corn syrup natural flavors etc. So Coca Coal is a mixture of compounds.
2016-03-14 05:16:40
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answer #5
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answered by Anonymous
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pure gold is 24 carat so the Au that is used in jewelry is an alloy, a mixture of Au and other metals. There are yellow golds, red golds, green golds, all different alloys.
2007-12-12 14:25:42
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answer #6
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answered by Gary H 7
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compound because the gold in gold jewlery is cemically mixed not phisically.. i think
2007-12-12 14:23:51
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answer #7
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answered by katie :] 2
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It depends on how many karats it is.
2007-12-12 14:28:34
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answer #8
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answered by Casey 1
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