Copper commonly occurs as the sulfide mineral CuS. The first step in extracting copper from CuS is to dissolve the mineral in nitric acid, which oxidizes the sulfide to sulfate and reduces nitric acid to NO. Balance the equation for this reaction using oxidation states: CuS(s)  +  H+(aq)  +  NO3−(aq)  ⟶  Cu2+(aq)  +  NO(g)  +  SO4−2(aq)

Chemistry & Chemical Reactivity
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Chapter22: The Chemistry Of The Transistion Elements
Section22.2: Metallurgy
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Copper commonly occurs as the sulfide mineral CuS. The first step in extracting copper from CuS is to dissolve the mineral in nitric acid, which oxidizes the sulfide to sulfate and reduces nitric acid to NO. Balance the equation for this reaction using oxidation states:

CuS(s)  +  H+(aq)  +  NO3(aq)  ⟶  Cu2+(aq)  +  NO(g)  +  SO4−2(aq)

Please use half reaction method!

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