You can boil or evaporate the water and the salt will be left behind as a solid. If you want to collect the water, you can use distillation. This works because salt has a much higher boiling point than water. One way to separate salt and water at home is to boil the salt water in a pot with a lid. So, I would say maybe oil.
B. Heat is a form of energy so boiling it would increase energy. (I guess)
Answer:
filtration and chromatography
Explanation:
I hope this will help you :-)
Answer:
It's nitrogen
Explanation:
cuz it has valence 3 and a diatomic gas at room temperature
I would say physical, because a physical change is affecting the form of a chemical substance, but not it's chemical makeup.