If salt melts ice, how does salt water freeze?

Answer 1

The addition of salt simply decreases the freezing point of ice. While fresh water freezes at 0 degrees celsius, salt water does not freeze until it gets much colder.

Answer 2

Salt melts ice because adding something to water lowers the temperture at which it freezes. You can still freeze salt water, but it has to be at a lower temperture. Usually when we have ice, the temperture outside is close to the freezing point, so adding salt lowers the freezing point below whatever the temperture outside is, and the ice melts. Technically, in a cold enough environment, salt wouldn't melt the ice because the temperture would already be too low.

Answer 3

well, ice melts in a room in this process. there is water vapour in the room and they will condense it back onto liquid water when the room itself or some thing in the room is cool enough. when ice is placed itself, water molecules condenses on the surface of ice and become water, this water is hot and also has a good specific heat capacity so it can supply heat to ice and so , it melts!
if we put salt together with an ice, the salt become soluble< a bit wet to the touch> in a liquid water formed so it brings about lower temperature to the ice-salt mixture!

this is a common laboratory procedure.

Answer 4

Salt changes the boiling and freezing point of water. It lowers water's freezing point. It will still freeze if the temp gets cold enough.

Answer 5

it freezes at a lower temperature