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Air, especially moist air, on copper will cause the formation of a patina, which will turn the surface a greenish color.
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∙ 9y ago
Air can cause copper to undergo oxidation, resulting in the formation of a layer of copper oxide on the surface of the metal. Over time, this oxide layer can continue to react with oxygen and moisture in the air, leading to the gradual corrosion and tarnishing of the copper surface.
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What is the substance in the air that causes copper to turn black when in contact with fire?
The substance in the air is oxygen. Copper + oxygen= copper oxide.
Why the colour of heated copper powder becomes black when air is passed over it?
the copper reacts with 02 in the air to make copper oxide, which is black 2Cu+O2--> 2Cuo
Which one of these is not a good conductor of heat aluminum air copper or silver?
i think copper is
What is the film on copper?
If you are referring to the greenish discolouration on exposure to the atmosphere it is called verdigris.
What is the green color coating formed on copper when exposed to air?
basic copper carbonate: CuCO3.Cu(OH)2
What is the substance in the air that causes copper to turn black when in contact with fire?
The substance in the air is oxygen. Copper + oxygen= copper oxide.
Solder copper lines on air conditioner?
on air conditioners you silver braze the copper lines
Which metal get green coating whrn exposed to air?
Copper... the surface of the copper that's exposed to the air reacts with oxygen to create copper oxide.
How does cca protect woods?
Copper has an action bactericide and fungicide; arsenic has an insecticide action.
How do you store copper?
Copper can be stored in bottles containing water, such that none of the copper is exposed to air, as this can cause the corrosion of copper.
How does the scale that forms copper is heated differ from the copper?
Heating copper in air the copper oxide CuO is formed.
What compound is formed when copper is burned?
Cooper get oxidised to copper oxide when burned in air.
Which is a better conductor of heat air or a copper wire?
A copper wire is a much better conductor of heat than air is.
Why is it when a piece of copper is folded squashed and heated in air only the outside of the copper is black?
The black coating you see is a coating of copper oxide, which forms when the hot metal reacts with air. no air can reach the inside, so it does not react to form black copper oxide.
Which will dissolve in water Air Sulfur or Copper?
Just air
Why the colour of heated copper powder becomes black when air is passed over it?
the copper reacts with 02 in the air to make copper oxide, which is black 2Cu+O2--> 2Cuo
How is the movement of electricity through air different from its movement through copper wire?
The Air is many molecules scattered all around and copper wire is molecules in a line and very condensed where air is not. Therefore copper wire is a better conducter
