Chemistry, asked by anujsingh3810rajput, 1 year ago

A student has been collecting silver and copper coins. One day he observed that a black coating on silver and a green coating on copper.Give the chemical names of the black and green coating. How are the formed?

Answers

Answered by eshaankuttikad

2

Corrosion is the phenomena responsible for these coatings.

Black coating on silver coins is silver sulphide. It is formed by reaction of silver with hydrogen sulphide in the atmosphere.

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 prerna555

1

HELLO BHAIYA..

PEHCHAANA KY????

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