Why do baking soda and vinegar react?
Show answer & explanation
Answer: Acid neutralizes base
Acid neutralizes base ✓ — Correct! Baking soda is a base (sodium bicarbonate) and vinegar is an acid (acetic acid). When mixed, they undergo an acid-base neutralization reaction. This produces sodium acetate, water, and carbon dioxide gas - the bubbles you see! The reaction is: NaHCO3 + CH3COOH → NaCH3COO + H2O + CO2.
They create heat — Wrong. While the reaction does release a tiny bit of energy, heat generation is not why they react. They react because of acid-base chemistry. The bubbling comes from CO2 gas being produced, not from heat.
Bubbles form naturally — Wrong. The bubbles don't form naturally or spontaneously. They are carbon dioxide gas produced by the specific chemical reaction between the acid in vinegar and the base in baking soda. This is a classic acid-base neutralization.
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