Cu2O + 3 H2SO4 → 2 CuSO4 + SO2 + 3 H2O
This is an oxidation-reduction (redox) reaction:
2 CuI - 2 e- → 2 CuII (oxidation)
SVI + 2 e- → SIV (reduction)
Cu2O is a reducing agent, H2SO4 is an oxidizing agent.
Reactants:
Products:
- CuSO4 – Copper(II) sulfate
- SO2 – Sulfur 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.]
- H2O – Water, oxidane