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How does salt melt ice? (video)

American Chemical Society

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IMAGE: Winter weather can mean treacherous driving across much of the country. Road crews spread rock salt all over the highways and byways, but why? This week, Reactions breaks down the... view more

Credit: The American Chemical Society

WASHINGTON, Jan. 5, 2015 -- Winter weather can mean treacherous driving across much of the country. Road crews spread rock salt all over the highways and byways, but why? This week, Reactions breaks down the chemistry that keeps the roads safe when bad weather hits. Check out the video here: http://youtu.be/JkhWV2uaHaA.

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