Question

Name the compound which is obtained from baking soda and is used to remove the permanent hardness of water . ii) Write its chemical formula . iii) What happens when it is recrystallized from its aqueous solution .

Answer 1

Answer:

1) Na2CO3 (washing soda)

2) it becomes sodium hydrogen carbonte decayhydrate when it is recrystallised from its aqueous solution

Answer 2

answer

i) sodium carbonate

ii) Na2CO3

iii) it forms washing soda that is sodium carbonate decahydrate

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