What is the equation if you add carbon monoxide to barium hydroxide twice?

We write down the reaction equation.
CO2 + Ba (OH) 2 = BaCO3 + H2O.
That is, the first time we add carbon monoxide to barium hydroxide, the result is barium carbonate and water.
BaCO3 + CO2 + H2O = Ba (HCO3) 2.
Then we add a second time carbon monoxide to barium carbonate, the result is barium bicarbonate.



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