What is the alka selzer reaction?

The Alka-Seltzer reaction occurs when the tablet, containing sodium bicarbonate and citric acid, dissolves in water. This reaction produces carbon dioxide gas, which creates bubbles and effervescence. The reaction can be represented by the equation: NaHCO₃ + C₆H₈O₇ → Na₃C₆H₅O₇ + CO₂ + H₂O. This effervescence helps to deliver the active ingredients quickly and can provide relief from heartburn or indigestion.