Question

dissolve in water give compound B which are used in a white washing powder component react with carbon dioxide and precipitated it also write an equation​

Answer 1

Answer:

The substance used for white washing is CaO (Calcium Oxide) . Compund A is calcium oxide formula = Cao .

When compund A is dissolved in water, Compund B is formed called Calcium Hydroxide Ca(OH)2 also called Slaked Lime.

CaO + H2O ----> Ca(OH)2

When compund B reacts with Carbon Dioxide, Calcium Carbonate , CaCO3 is formed.

Ca(OH)2 + CO2 ----> CaCO3 + H2O