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Chemical equation for: Cuprite, copper(I) oxide Chalcocite, copper(I) sulfide Covellite, copper(II) sulfide
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Chemical equation for:

Cuprite, copper(I) oxide
Chalcocite, copper(I) sulfide
Covellite, copper(II) sulfide

User Dlauzon
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1 Answer

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Chemical formula for cuprite is Cu₂O. Copper has oxidation number +1 and oxygen has -2 (2·(+1) + (-2) = 0).
Chemical formula for chalcocite is Cu₂S. Copper has oxidation number +1 and sulfur has -2 (2·(+1) + (-2) = 0).
Chemical formula for covellite is CuS. Copper has oxidation number +2 and sulfur has -2.
User Snowmonkey
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