what happens when a magnesium ribbon, silver jewellery and copper objects are exposed to air
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magnesium ribbon form a protective layer of MgO and hence when we try to burn it doesn't burn
Silver is a noble metal and thus nothing happens to it when exposed to air
Copper when exposed to air it form black layer of Cu2O
Silver is a noble metal and thus nothing happens to it when exposed to air
Copper when exposed to air it form black layer of Cu2O
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