why is salt spread on icy roads in winter?
2006-11-23 08:48:34 · 6 answers · asked by gramatin24 2 in Environment
salty water freezes at a lower temperature. the grit increases the traction of the road.
2006-11-23 09:31:02 · answer #1 · answered by bob 3 · 0⤊ 0⤋
Because the salt molecule shares electrons with the water molecules, breaking the molecular bond of the water, causing it to liquidate faster, and keeps it from freezing again (if you have enough salt to water).
2006-11-23 08:55:20 · answer #2 · answered by tankgirl 2 · 0⤊ 0⤋
To melt the ice and make the roads safer.
2006-11-23 08:55:12 · answer #3 · answered by mistickle17 5 · 0⤊ 0⤋
As they said melts ice or snow - usually mixed with grit to provide grip.
2006-11-23 09:14:41 · answer #4 · answered by snowogu 2 · 0⤊ 0⤋
salt reduces the freezing point of water, so it "melts" at normal freezing point. It's a colligative effect.
2006-11-23 08:55:17 · answer #5 · answered by drjaycat 5 · 0⤊ 0⤋
Because it melts the ice and snow!!
2006-11-23 08:51:19 · answer #6 · answered by Fred Flintstone 3 · 0⤊ 0⤋