What happens when water is added to solid calcium oxide taken in a container?
Calcium oxide reacts vigorously with water to produce slaked lime and large amount of heat is released. Reaction: CaO+H2O→Ca(OH)2+heat Calcium oxide reacts with a few drops of water to form calcium hydroxide, which is an alkali. This is an exothermic reaction, indicated by the water turning to steam. The solid remains white but breaks into a powder as the water is added.
