${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$

${\mathrm{H}}_2{\mathrm{CO}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {\mathrm{H}}_3{\mathrm{O}}^{+} + {\mathrm{HCO}}_3^{-}$

${\mathrm{CO}}_2 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons 2{\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${{\mathrm{HCO}}_3}^{-} \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{CO}}_3}^{2-}$

${\mathrm{HCO}}_3 \leftrightharpoons {\mathrm{H}}^{+} + {{\mathrm{HCO}}_3}^{-}$