Na2CO3+Ba(NO3)2

The reaction between sodium carbonate (Na₂CO₃) and barium nitrate (Ba(NO₃)₂) can lead to the formation of barium carbonate (BaCO₃) and sodium nitrate (NaNO₃). This can be represented by the balanced chemical equation:

\[ \text{Na}_2\text{CO}_3 (aq) + \text{Ba}(\text{NO}_3)_2 (aq) \rightarrow \text{BaCO}_3 (s) + 2 \text{NaNO}_3 (aq) \]

In this reaction:

• Sodium carbonate is soluble in water and is present in aqueous solution (aq).
• Barium nitrate is also soluble in water and is present in aqueous solution (aq).
• Barium carbonate is insoluble in water, resulting in the formation of a solid precipitate (s).
• Sodium nitrate remains soluble in water.

If you're studying this for an exam, remember that this is a double displacement reaction (also known as a double replacement reaction) where the cations and anions exchange partners. The formation of the precipitate is a key indicator of the reaction occurring.