2 CuS + 3 O2 2 CuO + 2 SO2

This is an oxidation-reduction (redox) reaction:

2 S-II - 12 e- 2 SIV (oxidation)

6 O0 + 12 e- 6 O-II (reduction)

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

Reactants:

  • CuSCopper sulfide source: wikipedia, accessed on: 2019-09-27
    • Other names: Copper monosulfide source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02, Covellite source: wikipedia, accessed on: 2019-09-27, Copper(II) sulfide source: wikipedia, accessed on: 2019-09-27, Cupric sulfide source: wikipedia, accessed on: 2019-09-27
    • Appearance: Black powder or lumps source: wikipedia, accessed on: 2019-09-27
  • O2
    • Names: Dioxygen source: wikidata, accessed on: 2019-09-07, Oxygen source: ICSC, accessed on: 2019-09-04source: wikidata, accessed on: 2019-09-07, Oxygen (liquefied) source: ICSC, accessed on: 2019-09-04
    • Appearance: Odourless compressed gas source: ICSC, accessed on: 2019-09-04; Liquefied gas. colourless-to-blue extremely cold liquid source: ICSC, accessed on: 2019-09-04

Products:

  • CuOCopper(II) oxide source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02
    • Other names: Cupric oxide source: wikipedia, accessed on: 2019-09-27source: wikidata, accessed on: 2019-09-02, Copper monoxide source: wikidata, accessed on: 2019-09-02, Copper oxide source: wikidata, accessed on: 2019-09-02
    • Appearance: Black to brown powder source: wikipedia, accessed on: 2019-09-27
  • SO2Sulfur dioxide source: wikipedia, accessed on: 2019-09-28source: wikidata, accessed on: 2019-09-02source: NIOSH NPG, accessed on: 2019-09-02
    • Other names: Sulfurous anhydride source: wikipedia, accessed on: 2019-09-28source: wikidata, accessed on: 2019-09-02source: ICSC, accessed on: 2019-09-04, Sulphur dioxide source: ICSC, accessed on: 2019-09-04source: wikidata, accessed on: 2019-09-02, Sulfurous acid anhydride source: wikidata, accessed on: 2019-09-02source: NIOSH NPG, accessed on: 2019-09-02
    • Appearance: Colorless gas source: wikipedia, accessed on: 2019-09-28; Colourless gas or compressed liquefied gas with pungent odour source: ICSC, accessed on: 2019-09-04; Colorless gas with a characteristic, irritating, pungent odor. [Note: A liquid below 14°F. Shipped as a liquefied compressed gas.] source: NIOSH NPG, accessed on: 2019-09-02