Question

Fill in the blanks:
1. Evaporation of river water is a ...................... endothermic change .

2.Naphthalene balls changing into napthalene vapours is a ................... .

3. condensation of water vapour to form clouds is an .................. .

4. The process of mixing a substance with another substances to from a solution is called ................ .


[ ............... means blanks ]
(please try to answer fast) ​

Answer 1

1. highly
2. volatile substance
3. condensation
4. chemical or physical combination