How can industiral salt melt snow and ice?
Nope, what actually happens is the salt lowers the freezing point of the water. By lowering the freezing point, the melting point is also lowered and water will freeze and melt at a cooler temperature (at the freezing/melting point of a substance there is an equilibrium between freezing and melting such as ice water at 0 degrees). So while under normal conditions, water will freeze at 0 degrees Celsius, it may freeze at -10 degrees Celsius when covered in salt.
