CuS + O2 → Cu + SO2 – Balanced equation

Or you want a quick look:

This is an oxidation-reduction (redox) reaction:

CuII + 2 e- Cu (reduction)

S-II - 6 e- SIV (oxidation)

2 O + 4 e- 2 O-II (reduction)

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CuS is an oxidizing agent, CuS is a reducing agent, O2 is an oxidizing agent.

Reactants:

  • CuSCopper sulfide
    • Other names: Copper monosulfide , Covellite , Copper(II) sulfide , Cupric sulfide
    • Appearance: Black powder or lumps
  • O2
    • Names: Dioxygen , Oxygen , Oxygen (liquefied)
    • Appearance: Odourless compressed gas ; Liquefied gas. colourless-to-blue extremely cold liquid

Products:

  • Cu
    • Names: Copper , Copper (dusts and mists, as Cu) , Cu
    • Appearance: Solid in various forms. turns green on exposure to moist air ; Reddish, lustrous, malleable, odorless solid.
  • SO2Sulfur dioxide
    • Other names: Sulfurous anhydride , Sulphur dioxide , Sulfurous acid anhydride
    • Appearance: Colorless gas ; Colourless gas or compressed liquefied gas with pungent odour ; Colorless gas with a characteristic, irritating, pungent odor. [Note: A liquid below 14°F. Shipped as a liquefied compressed gas.]
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