Question

what will you observe when you pass carbon dioxide through lime water ? write its chemical reaction ? is it chemical change if yes or no why​

Answer 1

Answer:

it turns milky sorry but I didn't remember the equation

but ya it's a chemical change

Answer 2

Answer:

When lime water is passed through carbon dioxide it turns into milky white due to the formation of calcium carbonate and water precipitate. Following is the chemical reaction for it :

Ca(OH)2 (aq) + ${CO_2}$ ------> ${CaCO_3}$ (s) + ${H_2O}$ (I)

It's a chemical change because it can not be reversed again.