Write the equation !
1) Black & white photography
2) Quick lime is heated with water
3) white washing
Answers
★ Hey mate ★
here is your answer !!
quicklime is used for whitewashing
when there is reaction of quicklime with carbon dioxide IT form calcium carbonate and it is u used for "whitewashing".
CaO + Co2 ====> CaCO3
there is formation of calcium carbonate and this is used for whitewashing of walls.
2) the chemical which is used in black and white photography is :-
silver chloride ( AgCl ) ( silver chloride is white in colour )
the formula of silver chloride is Agcl
Silver Bromide ( Silver Bromide is also white in colour )
the formula of Silver Bromide is ( AgBr2 )
3) When quick lime is added to water, the following reaction takes place. Here,CaO is quick lime and Ca(OH)2 is slaked lime.
CaO + 2H2O — Ca(OH)2 + H2
Hope it helps u a lot
Plz mark me as a brainlist