If heated, a decomposition reaction takes place. Sodium hydrocarbonate decompose to sodium carbonate, carbon(IV) oxide and water.
Balanced chemical equation of heating sodium bicarbonate:
2NaHCO₃ → Na₂CO₃ + CO₂ + H₂O
NaHCO₃ is sodium hydrocarbonate
Na₂CO₃ is sodium carbonate
CO₂ is carbon(IV) oxide
H₂O is water
This is chemical change (chemical reaction), because new substances are formed (sodium carbonate, carbon(IV) oxide and water), the atoms are rearranged, so there is no sodium bicarbonate (NaHCO₃) in the test tube.
Decomposition is reaction where one substance is broken down into two or more simpler substances.
More about decomposition: brainly.com/question/14539143
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