The equation 2Cr2O3 + 3Cu -> 4CrCuO3

1. The chemical equation above describes the reaction process between chromium (III) oxide (Cr₂O₃) and copper (Cu) to form copper chromium oxide (CrCuO₃).

2. Reaction Conditions: The specific conditions for this reaction may require high temperatures to stimulate the reaction.

3. Reaction Process: This involves the electron transfer between Cr₃+ ions from Cr₂O₃ and Cu ions from copper to form CrCuO₃.

4. Phenomena Occurring: During the reaction process, there might be a change in color, from that of Cr₂O₃ and Cu to that of CrCuO₃. If the reaction takes place at high temperatures, heat may be released.

Note: Detailed descriptions and specific phenomena may depend on the specific reaction conditions and other factors such as pressure, reaction environment, and catalysts (if any).