Washing Soda

Washing soda's chemical formula is _____.

Choose from the options:

A: ${\mathrm{Na}}_2{\mathrm{CO}}_3.10{\mathrm{H}}_2\mathrm{O}$

B: ${\mathrm{Na}}_2{\mathrm{CO}}_3.7{\mathrm{H}}_2\mathrm{O}$

Washing soda is synthesised through _____ process.

Write the properties of washing soda.

Write three uses of sodium carbonate decahydrate.

Write the name, method of preparation and uses of- ${\mathrm{Na}}_2{\mathrm{CO}}_3.10{\mathrm{H}}_2\mathrm{O}$.

Washing soda is 

Washing soda can be prepared by using baking soda.

Name a sodium compound used for softening hard water. (Sodium carbonate / Sodium bicarbonate)

   ${\mathrm{CO}}_2$ gas is liberated on heating of sodium hydrogen carbonate.

Washing soda is the common name for: