Question

Write the thermal decomposition reaction of Baking soda.

Answer 1

1. Thermal decomposition or thermolysis is a chemical reaction that happens when a compound breaks down when heated.
2. Baking soda(Sodium bicarbonate) decomposes upon heating to yield solid Sodium carbonate $\left({\mathrm{Na}}_2{\mathrm{CO}}_3\right)$, Water $\left({\mathrm{H}}_2\mathrm{O}\right)$ in the form of steam and Carbon dioxide$\left({\mathrm{CO}}_2\right)$ gas.
3. Reaction: $$\begin{gathered} {\mathrm{NaHCO}}_3\left(\mathrm{s}\right)\stackrel{∆}{\to }{\mathrm{Na}}_2{\mathrm{CO}}_3\left(\mathrm{s}\right)+{\mathrm{H}}_2\mathrm{O}\left(\mathrm{g}\right)+{\mathrm{CO}}_2\left(\mathrm{g}\right) \\ (\mathrm{Sodium}\mathrm{bicarbonate})(\mathrm{Sodium}\mathrm{carbonate})\left(\mathrm{Steam}\right)(\mathrm{Carbon}\mathrm{dioxide}) \end{gathered}$$.