Au + H2CO3 → H2 + AuCO3
This is an oxidation-reduction (redox) reaction:
CIV + e- → CIII (reduction)
Au0 - 3 e- → AuIII (oxidation)
2 HI + 2 e- → 2 H0 (reduction)
H2CO3 is an oxidizing agent, Au is a reducing agent, H2CO3 is an oxidizing agent.
This is an oxidation-reduction (redox) reaction:
CIV + e- → CIII (reduction)
Au0 - 3 e- → AuIII (oxidation)
2 HI + 2 e- → 2 H0 (reduction)
H2CO3 is an oxidizing agent, Au is a reducing agent, H2CO3 is an oxidizing agent.