How washing soda is prepared?

1.	How washing soda is prepared?
Answer» Its ok Sorry for being late bro On heating sodium hydrogen carbonate decomposes to form sodium carbonate i.e washing soda Washing soda is prepared from common salt or sodium chloride . Firstly of cold and concentrated sodium chloride solution is reacted with Ammonia and carbon dioxide to obtain sodium hydrogen carbonate Please explai in proper way The recrystallisation of sodium carbonate gives washing soda

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