Question

E. What happens when carbon dioxide is passed through lime water?
Lime water:
Cacolo
2why does it
happen​

Answer 1

Explanation:

Carbon dioxide reacts with limewater (a solution of calcium hydroxide, Ca(OH) 2), to form a white precipitate (appears milky) of calcium carbonate, CaCO 3. Adding more carbon dioxide results in the precipitate dissolving to form a colourless solution of calcium hydrogencarbonate.

Answer 2

Answer:

Resultant carbon dioxide passed through limewater in the right tube, producing a milky solution due to precipitation of the insoluble suspension of calcium carbonate: ... CaCO3(s) + H2O(l) + CO2(g) → Ca(HCO3) 2(aq) The milkiness disappears since calcium bicarbonate is water-soluble.