answer the following questions
Answers
A.
1)4 layer
2)barometer
3)biological impurities and colloidal impurities
4)boiling and filtration
B.
1) Evaporation: the phenomenon of change of a liquid into vapours at any temperature below its boiling point is called evaporation.
2)Condensation: it is the process of a substance in a gaseous state transforming into liquid state.this change is caused by a change in pressure and temperature of the substance.
3)sublimation: a change of state directly from solid to gas without changing into liquid state is called sublimation.
4)distillation: the process of separating the components of mixture containing two miscible liquids have sufficient difference in their boiling point is known as distillation.
5)solubility: the amount of solute present in saturated solution at a temperature at which the solution is made is known as solubility.