I want to know why in the reaction between HCl and NaHCO3, we have CO2 and H2O instead of H2CO3 ?
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$\begingroup$ see en.wikipedia.org/wiki/Carbonic_acid#Chemical_equilibrium $\endgroup$ – MaxW Nov 11 '18 at 22:56
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H2CO3 is stable at high pressure or excess of water only
