2 Cu (s) + O2 (g) + 4 HCl (aq) → 2 CuCl2 (aq) + 2 H2O (l)
This is an oxidation-reduction (redox) reaction:
2 Cu0 - 4 e- → 2 CuII (oxidation)
2 O0 + 4 e- → 2 O-II (reduction)
Cu is a reducing agent, O2 is an oxidizing agent.
Reactants:
- Cu
- O2
- HCl – Chlorane , Hydrogen chloride
- Other names: Hydrochloric acid , M , Uriatic acid
- Appearance: Colorless, transparent liquid, fumes in air if concentrated ; Colorless gas ; Colourless compressed liquefied gas with pungent odour ; Colorless to slightly yellow gas with a pungent, irritating odor. [Note: Shipped as a liquefied compressed gas.]
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