Oxygen was exposed to an electric discharge in an ozonizer. The resulting gas was passed through an aqueous solution of potassium iodide

Oxygen was exposed to an electric discharge in an ozonizer. The resulting gas was passed through an aqueous solution of potassium iodide, while a new colorless and odorless gas was released, which supported combustion and respiration. In an atmosphere of the latter gas, sodium was burned, and the resulting solid was reacted with carbon dioxide. Write the equations for the described reactions.

3O2 ↔ 2O3
O3 + 2KI + H2O → I2↓ + O2↑ + 2KOH
O2 + 2Na → Na2O2
2Na2O2 + CO2 → 2Na2CO3 + O2

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