How washing soda is obtained from baking...

How washing soda is obtained from baking soda ? Write the balanced chemical equations.

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`2NaHCO_(3)overset("heat")rarr Na_(2)CO_(3) + CO_(2)uarr + H_(2)O`
Baking soda on heating gives sodium carbonate which on crystallisation from aqueous solution gives washing soda.
`Na_(2)CO_(3) + 10H_(2)O rarr Na_(2)CO_(3).10H_(2)O`.

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