Question

What happens when carbon dioxide gas is collected by downward displacement of water?​

Answer 1

Answer:

carbon di oxide gas is soluble in water....therfore it cannot be collected by downward displacement of water since it will dissolve in water if collected.

Answer 2

The gas could also be collected by downward delivery (displacement of air) as it is denser than air and so collects at the bottom. In water, carbon dioxide produces a weakly acidic solution, carbonic acid. CO2 (g) + H2O (l) H2CO3 (aq).