A boy collects silver and copper coins one day he found black coating on silver coins . Mention phenomena for black and green coatings also write the equation
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rusting is the phenomenon
when metal rust with its surrounding like air, water etc... it is called rusting
if it helps u make me as brainiest
when metal rust with its surrounding like air, water etc... it is called rusting
if it helps u make me as brainiest
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it's corrosion of silver . The black coat formed is silver sulphide .it is formed when it reacts with sulphur in air
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