Write the reaction equation: barium-barium hydroxide-barium carbonate-barium nitrate-barium sulfate

1. The reaction of barium with water to form hydroxide.
Ba + 2H2O = Ba (OH) 2 + H2.
2. Obtaining barium carbonate by passing carbon dioxide through the hydroxide.
Ba (OH) 2 + CO2 = BaCO3 + H2O.
3. Decomposition of barium carbonate with acid.
BaCO3 + 2HNO3 = Ba (NO3) 2 + CO2 + H2O.
4. The reaction of exchange of barium nitrate with sodium salt.
Ba (NO3) 2 + Na2SO4 = BaSO4 + 2NaNO3.



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