Question

Formula of washing soda​

Answer 1

The formula of Washing soda is Na2CO3.

Answer 2

Washing soda :

Na₂Co₃.10H₂O

Formation of Washing Soda -

  Na₂CO₃    +    10H₂O   ⇒     Na₂Co₃.10H₂O

 (Sodium           (Water)          (Washing Soda)

Carbonate)  

Hope, it will help you.........