Question

Why do walls becomes shiny two to three days after they are white washed with Ca(OH)2 ?
write the chemical equation for this reaction.​

Answer 1

Hope this may help u

Explanation:

While white wasting Calcium hydroxide (Ca(OH)2) reacts slowly with the carbon dioxide (CO2) in the air to form a thin layer of calcium carbonate (CaCO3) formed after two to three days of whitewashing and gives a shiny finish to the walls

Answer 2

I hope it helps.

Explanation:

Walls become shiny after two to three days when they are white washed with calcium hydroxide Ca(OH)2 because while white washing Ca(OH)2 reacts slowly with CO2( carbon dioxide) in the air and it forms a thin layer of CaCO3 (Calcium carbonate ) and so it gives the wall a shiny looks after two to three days.