The sodium was burned in air. The resulting solid absorbs carbon dioxide to liberate oxygen and liberate salt.

The sodium was burned in air. The resulting solid absorbs carbon dioxide to liberate oxygen and liberate salt. The latter salt was dissolved in hydrochloric acid, and a solution of silver nitrate was added to the resulting solution. This resulted in a white curdled precipitate. Write the equations for the described reactions.

2Na + O2 → Na2O2
2Na2O2 + 2CO2 → 2Na2CO3 + O2↑
Na2CO3 + 2HCl → 2NaCl + CO2↑ + H2O
NaCl + AgNO3 → AgCl↓ + NaNO3

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