The reaction between hydrochloric acid HCl and sodium bicarbonate NaHCO3 is an acid-base reaction that has several practical applications in everyday life. This reaction can be represented by the following balanced chemical equation:HCl aq + NaHCO3 aq NaCl aq + H2O l + CO2 g Here are three specific examples to explain this reaction to a non-chemist:1. Antacid tablets:One of the most common applications of this reaction is in the use of antacid tablets to relieve heartburn and indigestion. When you consume an antacid tablet containing sodium bicarbonate, it reacts with the excess hydrochloric acid present in your stomach. This neutralizes the acid, producing water, carbon dioxide, and sodium chloride common table salt . The release of carbon dioxide gas may cause you to burp, while the neutralization of the acid helps to alleviate the discomfort associated with heartburn and indigestion.2. Baking soda and vinegar volcano:A popular science experiment for children is the baking soda and vinegar volcano. In this experiment, vinegar which contains acetic acid is used instead of hydrochloric acid, but the concept is the same. When baking soda sodium bicarbonate is mixed with vinegar, an acid-base reaction occurs, producing water, carbon dioxide gas, and sodium acetate. The release of carbon dioxide gas creates the fizzing and bubbling effect that resembles a volcanic eruption.3. Cleaning applications:The reaction between hydrochloric acid and sodium bicarbonate can also be used for cleaning purposes. For example, a mixture of baking soda and vinegar can be used to clean and unclog drains. The reaction produces carbon dioxide gas, which helps to break down and dislodge any clogs or debris in the drain. Additionally, the sodium acetate formed in the reaction can act as a mild cleaning agent, helping to remove dirt and grime.In summary, the reaction between hydrochloric acid and sodium bicarbonate is an acid-base reaction with several practical applications, such as antacid tablets, science experiments, and cleaning solutions. The reaction involves the neutralization of an acid HCl with a base NaHCO3 , producing water, carbon dioxide gas, and a salt NaCl .