The sodium ions are attracted to the oxygen atoms of the water molecules
Why is the freezing point lowered when salt is added to water?
When salt is added to water it lowers the freezing point because the water molecules will form crystals when freezing. The positive(Na) and negative(Cl) ions from the salt get in the way of the water molecules, making it harder for the water molecules to become crystals again. This then means that salt water remains in a liquit state for longer as the temperature reduces
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