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He Statue of Liberty is made of copper that has turned green because it has undergone a change . What can be said about this change ?
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He Statue of Liberty is made of copper that has turned green because it has undergone a change . What can be said about this change ?

User Boyan Hristov
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The chemical reaction is going.
2Cu+O2+CO2+H2O ----->Cu2CO3(OH)2
User Vcs
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