If you dissolve salt in water you have not changed the materials chemically.
It is a physical change because salt is not changed chemically.
Everything has to be cleaned, substrate changed, and the tank has to be made "safe for salt" There must be no metal that can come into contact with salt water.
Salt can be changed from solid to liquid by heating it to its melting point, which is 801°C. Once it reaches this temperature, it will turn into a liquid. However, salt cannot be changed directly from liquid to gas through a process like evaporation; instead, it will first need to be heated to a very high temperature to turn it into a gas.
Examples: hexachloroplatinate - (NH3)2PtCl6. NH3 can be changed with Na, K.
Salt water can be converted to fresh water by freezing and removing the ice crystals, distillation or by reverse osmosis.
When salt is dissolved in water, it forms a solution where the salt molecules are evenly dispersed throughout the water molecules. This is a physical change as the salt and water molecules remain the same, only their arrangement has changed.
When salt water has evaporated, it has undergone a physical change since the salt and water both retain their chemical configuration, only have changed their form.
It should not make any difference. the salt concentration in a salt water pool is the same as the salt concentration in your body. I think you should look for answers elsewhere.
During melting the chemical composition of NaCl is not changed.
Applying a pressure on sodium chloride this remain solid; but the allotropic forms are changed.
Well, the main nutrients are carbohydrates and salt. Then the carbohydrates are changed into fat....