This is actually two different chemical reactions, not one overall reaction.
CaCO3 + HNO3 → Ca(NO3)2 + CO2 + H2OIn this reaction, calcium carbonate reacts with nitric acid to form calcium nitrate, carbon dioxide, and water.
Na2CO3 + Ba(OH)2 → BaCO3 + 2 NaOHIn this reaction, sodium carbonate reacts with barium hydroxide to form barium carbonate and sodium hydroxide.
This is actually two different chemical reactions, not one overall reaction.
CaCO3 + HNO3 → Ca(NO3)2 + CO2 + H2O
In this reaction, calcium carbonate reacts with nitric acid to form calcium nitrate, carbon dioxide, and water.
Na2CO3 + Ba(OH)2 → BaCO3 + 2 NaOH
In this reaction, sodium carbonate reacts with barium hydroxide to form barium carbonate and sodium hydroxide.