As the ice melts, the orderly arrangement collapses and the water molecules move past each other and actually get closer together as liquid water. The motion of the molecules increases enough that it overcomes the attractions the water molecules have for each other causing the ice to melt.
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As the ice melts, the orderly arrangement collapses and the water molecules move past each other and actually get closer together as liquid water. The motion of the molecules increases enough that it overcomes the attractions the water molecules have for each other causing the ice to melt.