Question

if copper is kept open in air it slowly loses its shining brown surface and gains a green coating. it is due to the formation of​

Answer 1

Answer:

Copper Carbonate

Cu+CO2+H2O----->CuCO3.nH2O

Answer 2

Answer:

Formation of a mixture of copper carbonate and copper hydroxide

Explanation:

If copper is kept open in air, it slowly loses its shining brown surface and gains a green coating. ... Copper gets green coating due to the formation of a mixture of copper carbonate and copper hydroxide when it reacts with carbon dioxide gas and moisture present in air. This is called tarnishing of copper.copper doesn't get rust but tarnish.

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