Ag2S → 2 Ag + S

This is an oxidation-reduction (redox) reaction:

S-II - 2 e- → S0 (oxidation)

2 AgI + 2 e- → 2 Ag0 (reduction)

Ag2S is a reducing agent, Ag2S is an oxidizing agent.

Reactants:

  • Ag2S – Silver(I) sulfide, Silver sulfide source: wikipedia, accessed: 2019-09-28
    • Other names: Silver sulfide source: wikipedia, accessed: 2019-09-28source: wikidata, accessed: 2019-09-02, Ag2S source: wikidata, accessed: 2019-09-02, Silver(I) sulfide source: wikidata, accessed: 2019-09-02
    • Appearance: Grayish-black crystal source: wikipedia, accessed: 2019-09-28

Products:

  • Ag
    • Names: Silver source: wikidata, accessed: 2019-09-07source: ICSC, accessed: 2019-09-04, Ag source: wikidata, accessed: 2019-09-07, Element 47 source: wikidata, accessed: 2019-09-07
    • Appearance: White metal. turns dark on exposure to ozone, hydrogen sulfide or sulfur source: ICSC, accessed: 2019-09-04
  • S
    • Names: Sulfur source: wikidata, accessed: 2019-09-07source: ICSC, accessed: 2019-09-04, S source: wikidata, accessed: 2019-09-07, Sulphur source: wikidata, accessed: 2019-09-07source: ICSC, accessed: 2019-09-04
    • Appearance: Yellow solid in various forms source: ICSC, accessed: 2019-09-04