Is it true that salt only helps melt the ice if the temp is above 20 degrees ?

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Is it true that salt only helps melt the ice if the temp is above 20 degrees ?

Snowstorm or ice coming here soon. I am thinking about salt because I live on a hill and will never be able to get into my driveway. Maybe I should just buy some sand and a great shovel

2007-02-12 09:23:05 · 1 answers · asked by happydawg 6 in Science & Mathematics ➔ Weather

1 answers

http://chemistry.about.com/cs/howthingswork/a/aa120703a.htm

Salt can melt ice only down to 15 degrees F

2007-02-12 11:10:28 · answer #1 · answered by ibeboatin 5 · 0⤊ 0⤋