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24 January, 13:01

Sodium chlorate, NaClO3, decomposes when heated to yield sodium chloride and oxygen, a reaction used to provide oxygen for the emergency breathing masks in many airliners. Balance the equation. Express your answer as a chemical equation.

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  1. 24 January, 17:01
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    Sodium chlorate decomposes into sodium chloride and oxygen.

    The reaction is

    NaClO3 - - Δ--> NaCl + O2

    The Δ means that heat is used

    This equation is still not balanced.

    Balancing the equation

    2NaClO3 - - Δ--> 2NaCl + 3O2

    The equation is now balanced.
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