The equation 2Ca3(PO4)2 -> 6Ca3P2O8 + 2CaO + 2O2

1. The chemical equation shows the decomposition of the compound calcium phosphate (Ca₃(PO₄)₂) forming the compounds calcium pyrophosphate (Ca₃P₂O₈), calcium oxide (CaO), and oxygen gas (O₂).

2. Reaction conditions: For the reaction to occur, high temperature and the presence of a catalyst are required.

3. Reaction Process: As the temperature increases and the catalyst is added, calcium phosphate begins to decompose. The phosphorus in calcium phosphate combines with calcium to form calcium pyrophosphate while oxygen combines with calcium to form calcium oxide. The remaining phosphorus will combine with oxygen to form oxygen gas.

4. Phenomenon occur: During the reaction process, you can see changes in color and temperature of the reactant. When the reaction occurs, oxygen gas that can catch fire is generated.

Note that this information is for reference only and should not be used to conduct chemical experiments without the supervision of a chemistry expert.