Question

Can u plz answer this

Answer 1

A is germinating seeds or dry ice and B is lime

Aim is lime water turns milky

Answer 2

1) A is dry ice. B is CaCO3.

2) To demonstrate the effect of CO2 on lime water.

3) Ca(OH)2 + CO2 = CaCO3 + H2O

4) Lime water turns milky.