Does waters melting point increase when you add salt?

Answer 1

Nope. It decreases. By lowering the melting/freezing point of water, salt (usually in the form of rock salt) can be used to keep roads and other surfaces clear of ice, as it requires lower temperatures than normal to freeze.

Answer 2

Yes, adding salt to water lowers the melting point of water. This is because the presence of salt disrupts the bonds between water molecules, making it more difficult for them to form a solid lattice structure which leads to a lower freezing point.