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What causes reactions in baking soda?
Question Date: 2016-11-02
Answer 1:

When two different types of molecules interact with each other, new substances are created. Baking soda reacts because one of its molecules interacts with another one, and then a chemical reaction occurs.

The baking soda and vinegar reaction is:

NaHCO3 + H4CO2 -> NaH3CO2 + H2CO3 -> NaH3CO2 + H2O + CO2

NaHCO3 is sodium bicarbonate (baking soda)

H4CO2 is acetic acid (in vinegar)

NaH3CO2 is sodium acetate, a salt

H2CO3 is carbonic acid

H2O is water

CO2 is carbon dioxide gas

The reason why it bubbles over is the carbon dioxide gas.

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