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Science → Physical sciences → Chemistry → Water chemistry
ANSWERS: 1
  • Miss Awesome
    The reason ice melts when you spread salt on it is that it lowers the freezing point of water. The freezing point of water is 32°F. When you place salt on ice, the salt begins to dissolve and mixes with the water. This changes the freezing point to something around 15°F, which means that now the salt-water won't freeze until it reaches a temperature below that.
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