A metal x left in moist air for long time, lose s its shing brown surface & gains a green coat. Why has this happened? Name & give chemical f ormulas for this given coloured lmpcl & Identity the metal. List two way to prevent this precious?
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metal X is copper it's reacts with atmosphere to form copper oxide and then copper carbonate..
chemical formula = ca+o=cao(copper oxide)
then,
cao +co2=caco3(calcium carbonate)
chemical formula = ca+o=cao(copper oxide)
then,
cao +co2=caco3(calcium carbonate)
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