EVERYDAY SCIENCE

Detailed explanation-1: -When a salt solution is boiled in a beaker, the water in the solution will evaporate and salt will be left behind in the beaker. Hence, salt can be separated from the salt solution.

Detailed explanation-2: -Expert-Verified Answer During boiling the water gets completely evaporated leaving salt without change in its composition. This shows that NaCl is a compound because there was no change in its composition and concentration and it dissociated easily.

Detailed explanation-3: -As the water evaporates, the salt doesn’t leave with it! Therefore, the concentration of salt in the water left behind increases. Eventually, the concentration gets so high that the water becomes supersaturated, and the salt will begin to recrystallize into a solid. When all of the water is gone, you will have salt!

Detailed explanation-4: -Sodium chloride and water is an example of a mixture of compounds.

Detailed explanation-5: -So, when the water is evaporated, all of the table salt remains in the container. As the table salt is not transformed into a new compound during this process and the table salt does not evaporate, when the water is removed, all 15 grams of the table salt should still be present in the container.