it will leave a anhydrous solid, it does not change in color. It appears dry and cracked after all of the CO2 and H2O have evaporated.
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When sodium bicarbonate (NaHCO3) undergoes decomposition, it breaks down into sodium carbonate (Na2CO3), water (H2O), and carbon dioxide (CO2). This decomposition reaction occurs when heat is applied, releasing the carbon dioxide gas and leaving behind sodium carbonate as a residue.
The symbol equation for the decomposition of sodium hydrogen carbonate is: 2 NaHCO3 → Na2CO3 + H2O + CO2
The reaction you are referring to is the decomposition of sodium bicarbonate (NaHCO3) into sodium carbonate (Na2CO3), carbon dioxide (CO2), and water (H2O) when energy is supplied. This is an endothermic reaction, meaning it requires energy input to proceed.
Sodium hydrogen carbonate, also known as baking soda, decomposes when heated to produce sodium carbonate, water, and carbon dioxide gas. The chemical equation for this decomposition reaction is: 2 NaHCO3 → Na2CO3 + H2O + CO2
In the thermal decomposition of sodium bicarbonate (bicarbonate of soda, NaHCO3) to form sodium carbonate (soda ash, Na2CO3) and carbon dioxide (CO2), the stoichiometric relationship is 2 moles of NaHCO3 producing 1 mole of Na2CO3 and 1 mole of CO2. This means that for every mole of sodium bicarbonate decomposed, you'll get one mole of sodium carbonate and one mole of carbon dioxide.
The chemical formula for sodium bicarbonate is NaHCO3.