" Jormula of lilahing soda "

Write the chemical formula of washing soda. How is it obtained from baking soda ? Name one use of washing soda, other than washing clothes.

Write the chemical formulae for washing soda and Baking soda and give their uses.

Washing Soda

Write the chemical formula for washing soda. How is it be obtained from baking soda? Name one industrial use of washing soda other than washing clothes.