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Which metal form green basic carbonate coat when exposed to the atmosphere?
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What is the green color coating formed on copper when exposed to air?
basic copper carbonate: CuCO3.Cu(OH)2
What happens when copper utensils are exposed to prolonged atmospheric air?
When copper is exposed to moist air for a long time, it acquires a dull green coating. The green material is a mixture of copper hydroxide and copper carbonate. This film called 'verdigris' protects the underlying metal from further damage. 2Cu + H2O+CO2 + O2 Cu(OH)2 + CuCO3
When does the grass turn green?
The grass turns green when it is exposed to sunlight.
How do you make your copper roof green?
Leave it in moist air for some weeks. The Carbon dioxide, Oxygen and Water vapor react with Copper to form a greenish layer of Basic Copper(II) carbonate
What solid residue will turn from green to black if heated?
Iron(II) carbonate [green] to Iron(II) oxide.
Why copper roofings become coloured with green when exposed to atmosphere?
Copper carbonate hydroxide -Cu2CO3(OH) - is formed on the surface.
What is the green color coating formed on copper when exposed to air?
basic copper carbonate: CuCO3.Cu(OH)2
Is a form of green carbonate when exposed to moist air a physical property or chemical property?
PHYSICAL
Is copper tarnished?
Yes; the green basic copper carbonate is formed on the surface.
What is happening when copper turns green?
On the copper surface basic copper carbonate is formed.
What happens if bronze is is exposed to air for a long time?
During a long time a coating of green hydrated copper carbonate is formed.
What is a zaratite?
A zaratite is a hydrous basic nickel carbonate occurring in emerald-green incrustations or compact masses.
What does a green solution for a carbonate mean?
if solution is dark green then it is the carbonate of chromium +2 . if it is parrot green then carbonate of nickle +2 and if it is yellowish green then is carbonate of iron +2 or ferrous.
Does copper turn green?
yes copper turns green when exposed to moist air for a long time as green metal is a mixture of copper hydroxide and copper carbonate 2CU+H2O+O2 --> CU(OH)2+CUCO3
How does nickel turn carbonate green?
it is the nickel that makes the nickel carbonate green
Why does copper sulphate and sodium carbonate mixed together turn green?
Copper sulfate reacts with sodium carbonate to produce sodium sulfate and copper carbonate. (CuSO4 + Na2CO3 --> Na2SO4 + CuCO3) Copper carbonate is bluish green in color.
Why does green copper carbonate go black?
Because it undergoes thermal decomposition. If you give heat to Copper (II) carbonate, it will decompose to form Copper (II) oxide. Instead of saying green copper carbonate, I guess it is safer and better to say copper (II) carbonate.
