The original compound is sodium hydrogen carbonate which have the chemical formula NaHCO₃.
Sodium hydrogen carbonate contains sodium (Na), hydrogen (H), carbon (C) and oxygen (O).
Explanation:
We have the following chemical reaction when sodium hydrogen carbonate (NaHCO₃) is heated to produce carbon dioxide (CO₂), water (H₂O) and sodium carbonate (Na₂CO₃):
2 NaHCO₃ → CO₂ + H₂O + Na₂CO₃
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