* Fizzing and Foaming: The tablet contains sodium bicarbonate (baking soda) and citric acid. When these ingredients come into contact with the liquid, they react to produce carbon dioxide gas. This gas is what causes the fizzing and foaming.
* Acid-Base Reaction: The citric acid in the cordial reacts with the sodium bicarbonate in the tablet in an acid-base reaction. This reaction is also what produces the carbon dioxide gas.
* Neutralization: The reaction between the acid and base will slightly neutralize the acidity of the cordial. This is because the sodium bicarbonate acts as a base, counteracting the acid.
* Flavor Change: The flavors of the cordial and the Alka-Seltzer will blend. The taste might become less sweet and potentially take on a slightly bitter note, depending on the cordial's flavor.
* Potential for Dissolving: Depending on the type of cordial, the sugar content could slow down the dissolving of the tablet.
Important Note: While Alka-Seltzer is often used for indigestion, it's not recommended to mix it with sugary drinks like cordial. The high sugar content can counteract the potential benefits of the tablet and might even worsen indigestion.
In summary: The tablet reacts with the liquid, producing fizzing, foaming, and a potential change in flavor. However, this is not a recommended practice for digestive relief due to the interaction with sugar.
