Why is the combination of ice and salt so much colder than ice alone?
Answer:
because the salt lowers the freezing temperature of water
I don't know, but know you can make ICECREAM.
When you add a salt to water and the container feels cold, an
endothermic reaction is taking place. The solution is grabbing heat from the surroundings to get the salt to dissolve. When you add salt to a pure solvent (say, water), the freezing point will go down and the boiling point will go up.
Salt melts ice.
When salt comes into contact with ice, it forces the ice to melt as stated before. The melting process requires energy (heat) and therefore lowers the temperature of the entire system.
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