2007-02-24 00:16:15 · 8 answers · asked by PRATYUSHA G 1 in Science & Mathematics ➔ Chemistry
When copper is exposed to air it combines with water/air from sorrounding and turns green due to oxidation.its no magic its all chem
2007-02-24 00:21:47 · answer #1 · answered by kenya y 1 · 0⤊ 0⤋
It is known in the antiques trade as Verdigris, which is the common name for the chemical Cu(CH 3 COO) 2 , or copper(II) acetate. It commonly occurs by the action of acetic acid when copper, brass or bronze is weathered and exposed to air or seawater over a period of time.
2007-02-24 08:51:18 · answer #2 · answered by The exclamation mark 6 · 0⤊ 0⤋
All copper salts have a shade of blue or green.When copper is exposed to air I think it forms copper carbonate or something like that.
2007-02-24 12:51:46 · answer #3 · answered by soumya y 1 · 0⤊ 0⤋
because copper reacts with oxygen to form copper oxide which is green in colour
2007-02-24 13:12:05 · answer #4 · answered by AaSHEK 4 · 0⤊ 0⤋
When copper is exposed to air it combines with water/air from sorrounding and turns green due to oxidation.its no magic its all chem
2007-02-24 08:26:29 · answer #5 · answered by Anonymous · 0⤊ 1⤋
Due to corrosion
2007-02-24 08:35:28 · answer #6 · answered by Book Worm 1 · 0⤊ 0⤋
Look up "verdigris".
2007-02-24 08:18:23 · answer #7 · answered by Gervald F 7 · 0⤊ 0⤋
it is due to the corrosion..
2007-02-24 08:56:44 · answer #8 · answered by bubbly 2 · 0⤊ 0⤋