Water: The Role Of Salt In Ice

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Have you ever seen those large trucks outside on a snowy day pouring a white substance over the frozen road? You just saw salt: the tiny but mighty sodium and chlorine solute that shares quite a special relationship with ice. Both are translucent and white, yet one can be highly detrimental to the other. Salt works like a parasite on ice, eating away at it until all that is left is a cold, salty puddle of water. However, salt cannot achieve such a feat alone; it needs the help of water. Simply put, salt causes "freezing point depression" in ice, meaning it lowers ice's freezing point. When salt is sprinkled upon ice, it creates a brine with the film of surface water on the ice, which lowers the freezing point and starts melting the ice. In
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