because it has the most stuff that makes it melt
Yes, of course.
To melt it, usually on sidewalks in the winter months.
It takes 46:30 for kosher salt to melt ice!,
Salt melts ice, so it is put on the sidewalks to melt ice.
to melt the ice
Most people prefer rock salt to melt ice (sidewalks, driveways, etc) over table salt because it does not cake on the surface like table salt. As for effectiveness, they all combat ice the same. All edible salts are kosher unless something is added to them to render the salt non-kosher such as flavourings. There is no specific type of salt that is "kosher salt".
You can eat rock salt but it is in a crude form. It won't hurt you and is generally used to make ice cream and to melt ice on sidewalks.
Salt will melt ice faster than sugar or chalk. This is why most people will apply salt to icy sidewalks as opposed to sugar or chalk.
Fresh-water ice will melt faster in salt water than it will in fresh water or in the open air. Ice forms when water molecules are cooled down enough to arrange into solid crystals. Salt will, basically, get between the water molecules and make it harder for them to form crystals.
because it will melt the ice on the sidewalks.
no, but ice melt is a salt
When salt is added to ice, the melting point goes up, causing the ice to melt faster. That's why is cities where ice frequently is one sidewalks in winter, people shovel salt onto the sidewalk.
They put salt on the roads and sidewalks so that there isn't any ice.