it rises slightly
The salt dissolves in the water and the iron does not.
Water and an aqueous salt are often formed
It melts slowly.
If it is common salt ( sodium chloride) the pH should not alter as they are both neutral substances at pH = 7.
Water and an aqueous salt are often formed
Salt water has a higher density, so the pressure at a given depth increases.
Magnesium oxide react with water and magnesium hydroxide is formed.
U evaporate it
it float at the same level in water.
Silver nitrate will dissolve in distilled water. When added to a salt solution silver chloride will fall out of solution.
You get lesser salty water. The fresh water and salt watwr will diffuse together. In aquatic ecology sense, area where fresh water meet with sea water is brackish water.
It just stays there. some is lost to the backwash , splashing, overflow and so on but the salt that is in the water stays there.