The chemical equation is Cu + H2O2 -> CuO2 + H2O.

1. In this chemical equation, copper (Cu) reacts with hydrogen peroxide (H₂O₂) to form copper peroxide (CuO₂) and water (H₂O).

2. Reaction conditions: This reaction requires appropriate temperature, pressure, and an acidic environment to occur.

3. Reaction process:
   Copper reacts with hydrogen peroxide to produce copper peroxide and water. This process usually takes place in an acidic environment at high temperatures.

4. Phenomena occur:
   When copper reacts with hydrogen peroxide, it produces the brown solid of copper peroxide and generates water.

However, it should be noted that copper peroxide (CuO₂) is not a common compound in chemistry because copper typically exists in +1 or +2 oxidation states. This may be an error in the chemical equation and should be carefully reviewed.