Question

Do an activity to show that when exes carbon dioxide pass thought lime water the mika is less dessipere​

Answer 1

Answer:

when CO2 gas is passed through lime water it turns milky due to the formation of calcium carbonate which formula is CaCO3. when excess of carbon dioxide is passed through calcium carbonate calcium hydrogen carbonate is formed and solution become colourless

If you pass excess CO2 through lime-water, the CaCO3 reacts with the excess CO2 and water to form calcium hydrogen carbonate or calcium bicarbonate. Calcium bicarbonate is soluble in water and thus the milkiness dissolves in water.

white

Calcium carbonate is considered a soft, nonabrasive filler. Its natural color is white, however, it can be easily colored. It is chemically stable up to 800°C and above this temperature it dissociates into calcium oxide and carbon dioxide.

Answer 2

The reaction is given below

CaO + CO2 --------- CaCO3

When excess carbon dioxide is added

CaCO3 + CO2-----Ca(HCO3)2

Hope it helps you