Does boiling involve the same change of state as freezing?

State two physical properties of ionic compound

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3

How can a give a full method for the experiment of separating sand from water by filtration? 1-materials 2-steps 3-conclusion also for water and salt separated by the evaporation or distillation process