This causes it to decompose into a carbonate ion, a water molecule, and carbon dioxide. This can be represented by the following equation:
\[2 \mathrm{HCO}_{3}^{-} \longrightarrow \mathrm{CO}_{3}^{2-}+\mathrm{H}_{2} \mathrm{O}+\mathrm{CO}_{2}\]
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