Chemistry, asked by priyankachhetri, 1 year ago

a student has been collecting silver coins and copper coins one day she observed a black coating on Silver coin and a green coating on copper coin which chemical phenomenon is responsible for these coating write the chemical name of the black and green coating

Answers

Answered by rIshavQ

Corrosion is the phenomena responsible for these coatings. Black coating on silver coins is silver sulphide. ... Green coating on copper is copper carbonate. It is formed by reaction of copper with carbon dioxide, moisture and oxygen in the atmosphere.

Answered by RajdeepRanjan

corrosion is the chemical phenomenon

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