0
=> A 1:3 mixture of concentrated Nitric and Hydrochloric acids(known as Aqua Regia)
Au + HNO3 + 4 HCl ----> HAuCl4 + 2 H2O + NO
=> Similarly, mixture of concentrated Nitric acid and Hydrobromic acid can also dissolve gold
Au + HNO3 + 4 HBr ----> HAuBr4 + 2 H2O + NO
=> Hot and concentrated Selenic acid
2 Au + 6 H2SeO4 ----> Au2(SeO4)3 + 3H2SeO3 + 3 H2O
=> Concentrated, alkaline solutions of Potassium cyanide, in presence of oxygen
4 Au + 8 KCN + O2 + 2 H2O ----> 4K[Au(CN)2] + 4 KOH
=> Dichlorine hexoxide or Chloryl perchlorate
Cl2O6 + Au ----> ClO2+ + Au(ClO4)4-
=> Powdered gold can be treated with excess chlorine or bromine at high temperatures
2 Au + 3 X2 ----> 2 AuX3 (X = Cl, Br)
=> Gold can be treated with oxygen and fluorine at about 370°C and 8 Atmosphere pressures
2 Au + 2 O2 + 6 F2 ----> 2O2AuF6
=> Krypton difluoride can oxidize Gold to its highest oxidation state of +5
7 KrF2 + 2 Au ----> 2 KrF[AuF6] + 5 Kr
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Why is 24 karrot gold soft?
make gold hard because they add alot of chemicals with no chemicals it makes it very soft like tinfoil
Can gold make a compound?
Gold can make a compound, but it only reacts with a small number of chemicals that are not normally found in nature.
Why are gold and platinum found as pure metals?
Gold and platinum are inert and they are not affected by most of the chemicals and so they are found as pure metals
How do you separate the components of gold ore?
It is initially done manually. In that you pick out the gold from the other rocks. After that there are various acids and chemicals that dissolve the gold and separate it from the other material
Does anything oxidize gold?
Yes, there are chemicals to oxidize any metal you can think of, including gold. Gold will also oxidize on it's own if given enough time.
What doesn't erode with salt?
Gold is a solid material that doesn't erode with salt and doesn't react with anything, it has no reactants.
What is a strong mineral or rock that wont erode?
Diamond or Gold
How do cracks get wider in limestone?
The trace chemicals in rainwater erode the limestone - thus the cracks get wider.
Where is gold in Mississippi?
Probably, as many rivers that erode at the land have opened gold deposites, and the Mississippi is quite a large river.
What chemicals is gold made of?
Gold is made of one chemical: gold
What chemicals in gold make it gold?
Gold is only the chemical element gold (Au).
Why has gold jeawry surived from thousends of years ago?
Gold does not corrode, if it is away from wind,sand, dust and water it will not erode either.
Why does gold not react with other chemicals?
Gold does not react with other chemicals because it is the least in the reactant table and also known as The Humble Metal .
Why is 24 karrot gold soft?
make gold hard because they add alot of chemicals with no chemicals it makes it very soft like tinfoil
How can gold be seperated from quartz at a gold mine?
You could separate gold from other metals by gravity, by melting, or by chemical means.
What chemicals make up gold?
Gold is generally separated from rocks with sodium cyanide.
What is the capital of the Erode district?
Erode is the Capital of the Erode District.
