This reaction can be expressed with the following equation:
Na2HCO3 (aq) + HCl (aq) NaCl (aq) + H2O (l) + CO2 (g)
For the Quick Eze tablet, the main ingredients reacting with hydrochloric acid are calcium carbonate and magnesium carbonate, like sodium bicarbonate will produce water and carbon dioxide gas but the salt this time is calcium chloride and magnesium chloride. These reactions can be expressed with the following equation:
CaCO3 (aq) + HCl (aq) CaCl2 (aq) + H2O (l) + CO2