what type of salt melts ice faster?
831148
Sea salt melts it quickly.\n\n\nPeace
384952
heere are several examples of what is used to melt ice on the roads
387484
salts prevent ice from melting,or the best way is put it in the freezer!!!!!!
635448
For Fastest Speed, Hot water\nFor safer method, cold water
623496
Halite is the same thing as rock salt. This is what is used.
613215
Simply put, the salt lowers the freezing point of water.\n\nHow does it do this?  From kinetic molecular theory, the temperature of an object is proportional to the random motion of the molecules of the object.  As water cools down the molecules move slower and stick closer together until the intermolecular forces are stong enough to lock the molecules into a crystal structure (overcome random motion) and water freezes.  The salt lowers these intermolecular forces by interacting with the water molecules: there is some salt-water interaction and thus less water-water interaction.  Thus, a lower temperature is required to lock in the crystal structure (lower melting point) and the ice melts.\n\nThis works to about -30 or -40 C IIRC.
240715
The answer to this problem lies in colligative properties.  The salt ice solution will have a lower freezing point because by adding the salt, the solution is going through freezing point depression, which means that the solute is spreading apart the molecules of the solvent, thus requiring a lower temperature to freeze.
330025
it's frostbite. the water melting off the ice cube is because salt lowers the freezing point and so the water on your skin is very cold <32 so it freezes the skin. kinda like making ice cream except more painfull
429392
i'd say you have a basic understanding of molecular chemistry, micki.\n\nhowever, to improve your hypothesis, have it say:  I think the lower temperature the slower the salt will dissolve.  This is because the ions in a salt crystal require energy to dissolve away from the rigid crystal form the are in.  there is less energy present in cold water, therefore, the cold water will take longer to dissolve the salt crystals.
162986
We typed "how does salt melt ice" into the Yahoo! Search box and were soon traveling the well-worn path to How Stuff Works. \nThere we learned that the answer has to do with melting points. Most people know that water freezes at a temperature of 32°Fahrenheit (0°Celsius). Salt dissolves fairly rapidly in ice, lowering its freezing point in an effect known as freezing point depression, and melting it in the process. \n\nBut what's going on at the molecular level? Basically, salt molecules are bonding with water molecules, making it more difficult for ice to form. The result is a solution with a lower freezing temperature. For example, a 10% salt solution freezes at 20°F (-6°C), while a 20% salt solution freezes at 2°F (-16°C). \n\nYou've also probably noticed the effect of salt water on freezing points if you've tried to make ice cream or if you've wondered why the ocean doesn't freeze at the same time as bodies of fresh water, such as rivers, lakes, and ponds.
484197
Salt - sodium chloride.\n\nIf you need something a bit more unusual, I believe there is imitation salt which is potassium chloride.
323207
You could test whether or not salt really does make water freeze more slowly or boil more quickly. Just get four containers of water--two for boiling and two for freezing--and a thermometer. \n\nWith one of the containers without salt, put a thermometer in it and boil and time how long it takes. Mark the boiling point temperature and time. \n\nDo the same thing but one of your containers with salt. Compare your temperatures and times.\n\nThen, you can do the same two steps with freezing with the other two containers.\n\nIf you wanted to get really crazy, you could test to see whether a lot of salt vs. a little amount of salt makes a difference. Or, if you wanted to tone it down, you could do only one--the boiling or the freezing. \n\nThis seems to me like concepts that a second grader could handle.\n\nGood luck!
153508
They use a fine mist spray and build the ice up a fraction of an inch at a time.  It is time consuming but works really well.
1154777
When any salt particularly NaCl is added to the ice, it lowers down the temperature. The FREE ENERGY of the ice is interfered by the energy due to the ions (Na+ and Cl-) of the salt added to it. The movement of water molecule is restricted to some extent in the ice in the presence of salts. The energy saved due to restriction of movement of water molecule is being utilised by the ice to remain at still lower termperature aganist the surrounding temperature. Thus addition of salt to ice reduces the ice temperature.
163597
By "salt," I'm assuming you are talking about rock salt. It lowers the necessary temperature for which the ice cream will freeze, allowing the ice cream to congeal (come together). This provides the texture that we all have come to know and love. People also use rock salt on snow to melt it. The lowering the freezing point of the water combined with the temperature of the snow remaining the same, causes the snow to melt.
469334
Because salt consists of sodium and chloride ions, and as You know, ions have charge, so You know there will be an interaction(attraction) between water molecules and the ions. You might also know that in ice, water molecules are in a definite distance from each other, they are in a crystal structure. Well, because of the interaction, that structure "opens up", and the water molecules get closer to each other, so the structure move from solid to liquid, as the interaction between them becomes weaker.\nI hope i was understandable. \nSalt lowers the boiling point and increases the freezing point of water. You can see it Yourself by putting salt into water, it'll boil sooner than without it.
661119
sodium chloride or salt