Question

Explain why naphthalence balls kept in stored cloths in our homes disapper over a period of time

Answer 1

this is due to sublimation.napthlene balls underdgo sublimation and change their state from solid to gas.as a result it turns into vapours and diffuses in the air

Answer 2

Naphthalene is a substance that is sublime in nature; this basically means it has a tendency to change its state from solid directly to the gaseous form without paying through the intermediate liquid state. 

Hence, Naphthalene balls kept in stored cloths in our homes disappear over a period of time