Question by  ABrito (13)

Why does Alka Seltzer fizz?


Answer by  Tenpa (67)

The fizz we see when we drop Alka Seltzer into our glass is a result of the water interacting with citric acid and sodium bicarbonate. Both harmless ingredients that assist in distributing the aspirin in your water and in settling your stomach. The "fizz" helps you absorb aspirin and helps you burp. Both are welcome when we don't feel good.


Answer by  raisacole (14)

Alka Seltzer consists of balanced quantities of CO3 and H that combine with H20 and form carbonic acid which causes it to fizz.

posted by Anonymous
No. The reaction does not include H2O. The reaction is between sodium bicarbonate and citric acid.  add a comment

Answer by  Milette4 (900)

Amongst its many other ingredients, Alka Seltzer contains sodium bicarbonate (we know it as baking soda or baking powder used in the kitchen) and citric acid. When these two substances are brought into contact with water, sodium citrate and carbon dioxide are formed. These two gasses then manifests as bubbles or 'fizz'.

posted by Anonymous
No. Sodium citrate is not a gas.  add a comment

Answer by  DavidJay (23)

Alka-Seltzer contains citric acid and sodium bicarbonate. By dropping the tablet in water, these two chemicals react--much like vinegar and baking soda--which causes a chemical reaction that releases carbon dioxide, which appears as a fizz of upwardly-rising bubbles in the water.


Answer by  monkeyz (3150)

Alka Seltzer fizzes because it is essentially baking soda and citric acid. When you combine it with water, it causes a chemical reaction.


Answer by  darcyn77 (321)

The secret behind the fizz of Alka Seltzer can be found in the name! It's seltzer water that causes it to fizz. The reasoning behind this fizzing is because it is a more effective way of delivering medication. Your body is able to absorb it faster than taking a pill.


Answer by  cafish (2035)

When mixed with water, the sodium bicarbonate and citric acid causes bubbles to form. They both dissolve and cause the release of carbon dioxide.

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