The equation CaSO4 + 2Na2S2O3 -> 3Na2SO4 + CaS2O3

Detailed information about the equation CaSO₄ + 2Na₂S₂O₃ -> 3Na₂SO₄ + CaS₂O₃
The aforementioned chemical equation describes a chemical reaction process between calcium sulfate (CaSO₄) and sodium thiosulfate (Na₂S₂O₃) resulting in the formation of sodium sulfate (Na₂SO₄) and calcium thiosulfate (CaS₂O₃).

Reaction Conditions
Specific conditions for the reaction to occur can vary based on different factors such as temperature, pressure, and the reaction environment. However, the most common conditions for the reaction to occur are at room temperature and standard pressure.

Reaction Process
The reaction process involves mixing calcium sulfate and sodium thiosulfate together under appropriate reaction conditions. The result of the chemical reaction is the formation of sodium sulfate and calcium thiosulfate.

Phenomena Occurring
In reality, the phenomena occurring in this specific chemical reaction may not be directly observable. Some other chemical reactions may lead to color changes, the formation of solids (precipitates), or the generation of vapor/gas. However, in this case, it may not be easy to observe any clear phenomena without specialized chemical analysis equipment.