Why Do Ice Melts

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Ice melts when in contact with salt because adding salt to the system will disturb the equilibrium,( a state in which opposing forces are balanced). The rate of melting is unchanged by the presence of a foreign material. Melting occurs faster than freezing. Salt lowers the freezing point of water. It makes a brine with the film of surface water. Any temperature above thing above the temperature of 32*F makes it possible for ice to melt. The higher the heat, the faster it melts.
The first snow plows were horse drawn wedge-plows made of wood as early as the 1840’s. The first motorized snow plow was made in 1913 by Good Roads Machinery in Kennett Square PA. A purifier works by sending out a stream of negative ions that are attracted to positive

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