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Stacy Guerra
Stacy Guerra asks:
Q:

why does salt melt ice?

In Topics: Science fair
> 60 days ago

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Expert

greenprof2
Jul 27, 2013
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What the Expert Says:

this is all because water is such an unusual molecule in nature! Most substances involve an energy change when they change phases but most don't behave like water. Read on...
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Additional Answers (1)

klayburns
klayburns writes:
In its pure state, water freezes at 0°C or 32°F. By using salt, that freezing point can be lowered which forces the ice to melt and prevents the water from freezing or re-freezing. It must be noted, however, that salt alone can't melt ice. It must first be combined with water to start the melting process.
> 60 days ago

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