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Name: scott m guzik
Status: N/A
Age: N/A
Location: N/A
Country: N/A
Date: 1999 

Why do vinegar and baking soda react?

Vinegar contains a lot of acetic acid; baking soda is sodium bicarbonate. When sodium bicarbonate dissolves into the vinegar, it reacts with water and forms OH-, which reacts with the acetic acid (OH- is base) to form water.

Short it's an acid-base reaction.

Hope that helped!

The fizz though is the formation of carbon dioxide gas. Bicarbonate is HCO3-. The reaction:

HCO3- + H+ (from the vinegar) ---> H2CO3 (carbonic acid)

Carbonic acid quickly break into water and carbon dioxide:

H2CO3 ---> H2O + CO2

Hence the fizzing.


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