help please...like is it the oxygen in the air of the water vapour or what?
2006-11-23 04:38:31 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Copper reacts with carbon dioxide in the presence of moisture to form copper carbonate, which is green. More precisely this is a cupric carbonate/cupric hydroxide complex: CuCO3/Cu(OH)2. Likely some cuprous carbonate is also present Cu2CO3.
2006-11-23 04:41:28 · answer #1 · answered by Flyboy 6 · 2⤊ 0⤋
Looking at the Statue of Liberty which is copper, the green color is a coating of copper chloride from the salt air.
Copper goes green from chemical reaction with materials in the air or environment.
2006-11-23 12:43:10 · answer #2 · answered by science teacher 7 · 0⤊ 1⤋
The green colour originates from barium chlorate.
2006-11-23 13:13:27 · answer #3 · answered by Anonymous · 0⤊ 1⤋
Look up the word "verdigris".
2006-11-23 12:40:00 · answer #4 · answered by Gervald F 7 · 0⤊ 2⤋