EmeanMachine EmeanMachine

09-10-2018
Chemistry

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Sodium carbonate is often used in certain candies to create fizzy bubbles when solid weak acids in the candy are dissolved with saliva. Explain the fizzing effect.

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Dejanras Dejanras

19-10-2018

Answer is: in chemical reaction with with weak acid, sodium carbonate produce carbonic acid (H₂CO₃), which decomposes into carbon(IV) oxide (fizzy bubbles) and water.

Balanced chemical reaction:

Na₂CO₃ + 2HClO → CO₂(g) + H₂O + 2NaClO.

Chemical decomposition is the separation of a carbonic acid into water and carbon dioxide: H₂CO₃ → CO₂ + H₂O.

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