Question

(a) X is a compound the used for a soft airsofting that the hard water. Write the chemical formula of X
(b) what type of salt is X
(c) what happen when X is heated
(d) name the acid and base used to obtain a compound X (e) what is the chemical nature of a the salt

Answer 1

Washing soda
Chemical formula:CA2SO4.10H2O
Chemical name; calcium sulphate deca hydrate

Answer 2

A) X is washing soda which is used to soft the hard water.

Chemical formula = Na2CO3.10H2O

B) It is a basic salt.

C) When washing soda is heated, it gets de dehydrated