2006-10-23 12:06:42 · 5 answers · asked by z 2 in Science & Mathematics ➔ Chemistry
Gold cannot displace hydrogen in acids so gold alone will not react with acids...
But for example AuCl and HNO3
AuCl can react with HNO3 to form HCl and AuNO3...
2006-10-23 23:13:42 · answer #1 · answered by King 1 · 1⤊ 0⤋
pure gold doesn't react. gold of lower kt's will react . Actually the alloys dissolve. Aqua regia was mentioned. Gold mines currently use a weak solution of sodium cyanide to dissolve gold from its host rock. The crushed stone is placed on a covered leaching pad and the solution is sprayed onto it until the gold is liberated then the solution is neutralized and zinc is added to the solution causing the gold to precipitate out where it is collected and refined into 99.999 pure gold.
2006-10-26 02:57:39 · answer #2 · answered by carolinatinpan 5 · 0⤊ 0⤋
Gold does not react with most chemicals but is attacked by chlorine, fluorine, aqua regia and cyanide. Gold dissolves in mercury.
2006-10-23 12:14:59 · answer #3 · answered by romulusnr 5 · 1⤊ 0⤋
Only with a special kind of acid -- called Aqua Regia. It's a mixture of two concentrated acids - nitric and hydrochloric.
http://en.wikipedia.org/wiki/Aqua_regia
2006-10-23 12:10:04 · answer #4 · answered by Anonymous · 0⤊ 0⤋
it depends with what type of acid.
2006-10-23 12:09:00 · answer #5 · answered by Anonymous · 1⤊ 0⤋