Is boiling salt water until just salt remains a physical or chemical change?

Quiz1. which physical state of nitrogen has the highest entropy? a solid© b gasoc liquid

Light waves can move through , but they travel fastest when they move through a(n) .

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