Answer
Heartburn is caused by hydrochloric acid when it backs up out of the stomach and reaches the esophagus. The $H^+$ ions produced by the acid irritate the tissues, causing a painful burning sensation.
Due to the presence of bicarbonate ion in saliva, swallowing repeatedly is a very simple option to relieve the heatburn. It is also possible to treat it with antacids like Tums, milk of magnesia or Mylanta.
Work Step by Step
Heartburn is caused by hydrochloric acid when it backs up out of the stomach and reaches the esophagus. The $H^+$ ions produced by the acid irritate the tissues, causing a painful burning sensation.
Due to the presence of bicarbonate ion in saliva, swallowing repeatedly is a very simple option to relieve the heatburn. It is also possible to treat it with antacids like Tums, milk of magnesia or Mylanta.
