The chemical equation CaSO4 + 2Na2CO3 -> Na2SO4 + CaCO3 + CO2

Detailed information about the equation:

• CaSO₄ (Calcium sulfate) reacts with Na₂CO₃ (Sodium carbonate) to form Na₂SO₄ (Sodium sulfate), CaCO₃ (Calcium carbonate) and CO₂ (Carbon dioxide).
• CaSO₄ and Na₂CO₃ are the starting substances. Na₂SO₄, CaCO₃ and CO₂ are the final products of the reaction.

Reaction conditions:

• The reaction environment should be acidic.
• Temperature and pressure can also affect the reaction process, but typically this reaction occurs under normal temperature and pressure conditions.

Reaction process:

• First step, CaSO₄ reacts with Na₂CO₃ to form Na₂SO₄ and CaCO₃.
• Next, CaCO₃ decomposes to form CaO and CO₂.

Phenomena that occur:

• When the reaction occurs, the solid substances of calcium sulfate and sodium carbonate will disappear.
• There is a phenomenon of CO₂ gas bubbles being released.
• The formation of solid calcium carbonate and sodium sulfate solution.