Question

please a,b and c solve​

Answer 1

Explanation:

A: its formula is NaHCO3 commonly k/a sodium bicarbonate it is used in baking

C: its formula is CaSO4 1/2H2o

it is used in building material

Answer 2

a) NaHCO3 (baking soda/ sodium bicarbonate)

used for:-

1) make baking powder

2) in fire extinguishers

3) as an antacid

b) CaOCl2 (bleaching powder/ calcium oxy-chloride)

uses-

1) used as disinfectant to kill pathogens

2) used in swimming pools

3) used in bleaching industries to bleach clothes and wood pulp

c) CaSO5.1/2H2O (plaster of paris; pop/ calcium sulphate hemi-hydrate)

uses-

1) to make toys and statues

2) in setting fractured bone

3) in making designs on ceiling