When baking soda (sodium bicarbonate or sodium hydrogen carbonate, NaHCO3) is heated, it releases carbon dioxide gas, which is responsible for the rising of cookies, donuts, and bread. 2 NaHCO 3 → Na 2 CO 3 + H 2 O + CO 2. 2NaHCO3 → Na2CO3 + CO2 + H2O is the decomposition reaction that occurs when NaHCO3 is heated.
What happens when NaHCO3 is heated?
Baking soda, or sodium bicarbonate (NaHCO3), is a chemical that can undergo a decomposition reaction when heated. At temperatures above 176 degrees Fahrenheit (80 degrees Celsius), sodium bicarbonate starts to break down into three compounds, forming sodium carbonate (Na2CO3), water (H2O) and carbon dioxide (CO2).
Which gas is evolved when NaHCO3 is heated?
Answer: When heated, baking soda gradually decomposes to form sodium carbonate, water along with the evolution of carbon dioxide gas.
