Salt, if you put it on ice, melts the ice. So that probably what is causing it not to freeze as fast.
Water can be salty or pure.
Salty water is not considered pure water because it contains dissolved minerals or ions like sodium and chloride. These minerals change the chemical composition of the water, making it different from pure water.
The impurity of a substance may enhance or decrease the rate of cooling, according to its chemical properties.
answ2. Pure water, e.g. melted straight from snow, is rather flat and bland. Distilled water the same.It is not 'salty'.
That depends on what temperature the pure water is at. Pure water in general does cool faster, however.
through distillation or filtering
Salty water (saltwater) has a higher boiling point than pure water, as the presence of salt in the water raises its boiling point. This is because the salt interferes with the ability of the water molecules to escape as vapor, requiring higher temperatures for boiling to occur compared to pure water.
A fresh egg don't float in pure water; in a salty water the floating depends on the concentration of the salt in solution. The salty water is more dense.
Pure water boils faster than water with salt because adding salt elevates the boiling point of water. This means that it takes longer for the salty water to reach the higher temperature needed for boiling compared to pure water.
Salty water has a lower freezing point than pure water. So, very salty water may have a chance of being liquid on Mars. However there seems to be no liquid water on Mars.
Vapors are contain practically pure water.
If you mean salty, it is because salt makes you thirsty