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what is the chemical formula for corrosion in copper and silver??

Copper corrodes as basic copper carbonate that is CuCO3.Cu(OH)2

Silver Corrodes as silver sulphide that is Ag2S

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Reaction for copper: 2Cu + O2 --> 2CuO.

Reaction for silver:     2Ag + H2S -----> Ag2S + H2
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Cu + O2 + H2O + CO2 = Cu2(OH)2CO3 (Basic Copper Carbonate,Bluish-green)
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Cu+Co2+H2O=CuCo3.Cu(OH)2 Where, CuCo3 is the brownish volor
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Write a formula of corrosion of copper
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Cu + CO2 + H2O--> CuCO3+Cu(OH)2
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Corrosion collagen when a metal
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Corrosion:- when a metal is attacked by a substance around it such as moisture air and acid etc. It is said to corrode and this process is called corrosion. Corrosion of Ag Ag+O2----- Ag2O Ag2O+H2S------Ag2S+H2 (Black) Corrosion in copper Cu+ CO2+H2O--------CuCO3.Cu(OH) 2 (Green)
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