Question

Why are items made of silver turn black when exposed to air

Answer 1

heya....

Silver objects turn black due to the formation of a layer of silver sulfide (Ag2S) on their surface.

Traces of hydrogen sulfide (H2S) present in air react with silver to form silver sulfide, which gives the metal black appearance.


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Answer 2

Because of the process of corrison items made of silver turn black when exposed to air.