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The reason that copper turns green is the same reason the metal rusts, oxidization. Both metal and copper oxidize when exposed to oxygen and this is a natural process. Copper that is exposed to the outside environment is more likely to turn green and that is why copper vases and decorative pieces in gardens are often green.
Copper is a metal that does not react with water (H2O), but the oxygen of the air will react slowly at room temperature to form a layer of brown-black copper oxide on copper metal which looks like green sometimes...
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By heating green copper carbonate so that it changes to black copper oxide will this be a chamical or physical change?
Chemical, the resultant molecules have different structures and properties.
What is the word for copper turning green?
The word is "oxidation", which in the case of copper is a three-step process where the copper oxidizes to copper oxide, then to cuprous or cupric sulfide, and then to copper carbonate. Copper carbonate is the green colored copper or patina that forms over time. The old name for this green patina is "verdigris".
What does copper and oxgyen make?
Copper oxide, which is a compound from the two elements copper and oxygen. When copper is exposed to oxygen for a long period of time, it begins turning green. The green is Copper oxide.Copper oxide can refer toCopper(I) oxide (cuprous oxide, Cu2O), a red powder;Copper(II) oxide (cupric oxide, CuO), a black powder. (Source wikipedia)
Is a copper penny turning green a chemical change?
You can also turn pennies and some other coins green by letting them sit overnight in a paper towel soaked in vinegar. and if you want to clan pennies to shine, put them in a cup of vinegar and salt dissolved. (I once tried cleaning them with a pinch of kosher salt instead and it dug a hole through the penny! -NOT RECOMENDED!!!)
What happens when you put copper in salt water?
When copper is placed in salt water, a chemical reaction causes the copper to turn a blue-green color: this is called copper chloride. If you leave copper in salt water long enough beside the change of color, you should also see a blue-green film or powder appear. This is normal.
Is turning of copper into green when exposed into environment physical or chemical change?
It is a chemical change.
Is the Statue of Liberty a physical change or a chemical change?
No its a chemical change because the acid in the rain reacts with the copper in the statue having a reaction oxidizing it and turning it green.
Is copper turning green when expose to environment a chemical change and why?
It is a chemical change because chemical reactions are involved; copper become hydrated copper carbonate.
Why does copper change color to a greenish color?
Copper changes color to green either because of the weather or a physical change
Does copper turn green by a chemical or physical change?
Chemical. It turns green because of oxidation.
Is copper metal turning green on exposure to air and water a physical or chemical change?
Yes it is a chemical change Because colour is changing and a new substance is forming and it's irreversible.
When copper turns green when exposed to the environment a physical or chemical change?
First, copper doesn't "turn green," it reacts with oxygen in the air to form copper oxide. This is a chemical change, because copper oxide is a substance that was not there before.
Is a green tomato turning red a chemical change?
nope!.. its physical change.. because its still a tomato...^^
Is copper turing green a physical or chemical change?
It's a chemical change. Copper oxidizes to form copper oxide, which is similar to iron rusting. A color change very often indicates a chemical change.
Is the penny turning green like the statue of liberty turning green?
yes cause its copper
Copper turns green when exposed to the environment chemical or physical?
it is a chemical change because copper is one of the elements on the periodical table .
When A bronze statue develops a green coating (patina) over time is physical change or chemical?
It is chemical. The copper in bronze turns green when it oxidizes.
