Na2CO3+HCl-

The reaction between sodium carbonate (\( \text{Na}_2\text{CO}_3 \)) and hydrochloric acid (\( \text{HCl} \)) can be represented by the following balanced chemical equation:

\[ \text{Na}_2\text{CO}_3 (s) + 2 \text{HCl} (aq) \rightarrow 2 \text{NaCl} (aq) + \text{H}_2\text{O} (l) + \text{CO}_2 (g) \]

Explanation of the Reaction:

1. Reactants: Sodium carbonate is a carbonate salt, and hydrochloric acid is a strong acid.
2. Products: The reaction produces sodium chloride (table salt), water, and carbon dioxide gas.
3. Observations:
   • Bubbles will form as carbon dioxide (\( \text{CO}_2 \)) is released during the reaction.
   • The resulting solution may contain dissolved sodium chloride.

Steps of the Reaction:

1. The hydrochloric acid donates protons (\( \text{H}^+ \)) to the carbonate ion (\( \text{CO}_3^{2-} \)).
2. This reaction results in the formation of carbonic acid (\( \text{H}_2\text{CO}_3 \)), which is unstable and decomposes into water and carbon dioxide.
3. Sodium ions (\( \text{Na}^+ \)) combine with chloride ions (\( \text{Cl}^- \)) to form sodium chloride.

This reaction is a typical acid-base reaction where the carbonate behaves as a base, neutralizing the acid. If you have any further questions or need more information, feel free to ask!