V2O5 + 5 Ca → 5 CaO + 2 V

This is an oxidation-reduction (redox) reaction:

2 VV + 10 e- → 2 V0 (reduction)

5 Ca0 - 10 e- → 5 CaII (oxidation)

V2O5 is an oxidizing agent, Ca is a reducing agent.

Reactants:

  • V2O5 – Divanadium pentaoxide source: wikipedia, accessed: 2019-09-28source: wikidata, accessed: 2019-09-02
    • Other names: Vanadium(V) oxide source: wikipedia, accessed: 2019-09-28source: wikidata, accessed: 2019-09-02, Vanadium pentoxide source: wikipedia, accessed: 2019-09-28source: ICSC, accessed: 2019-09-04source: wikidata, accessed: 2019-09-02, Vanadic anhydride source: wikipedia, accessed: 2019-09-28source: ICSC, accessed: 2019-09-04
    • Appearance: Yellow solid source: wikipedia, accessed: 2019-09-28; Yellow-to-red crystalline powder or solid in various forms source: ICSC, accessed: 2019-09-04; Yellow-orange powder or dark-gray, odorless flakes dispersed in air. source: NIOSH NPG, accessed: 2019-09-02; Finely divided particulate dispersed in air. source: NIOSH NPG, accessed: 2019-09-02
  • Ca
    • Names: Calcium source: wikidata, accessed: 2019-09-07, Calcium (powder) source: ICSC, accessed: 2019-09-04, Ca source: wikidata, accessed: 2019-09-07
    • Appearance: Silvery-white-to-grey powder source: ICSC, accessed: 2019-09-04

Products:

  • CaO – Calcium oxide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02
    • Other names: Quicklime source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04, Burnt lime source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Unslaked lime source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: NIOSH NPG, accessed: 2019-09-02
    • Appearance: White to pale yellow/brown powder source: wikipedia, accessed: 2019-09-27; White hygroscopic crystalline powder source: ICSC, accessed: 2019-09-04; White or gray, odorless lumps or granular powder. source: NIOSH NPG, accessed: 2019-09-02
  • V
    • Names: Vanadium source: wikidata, accessed: 2019-09-07, V source: wikidata, accessed: 2019-09-07, Element 23 source: wikidata, accessed: 2019-09-07