1.how does common salt and magnesium chloride help in clearing roads ? 2. at what temperature common salt and magnesium chloride or calcium chloride is effective 3. discuss damaging effects of these chemicals on environment and how does use of potassium acetate remove these damaging effects ?
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Explanation:
1 magnesium chloride depresses the freezing point of water to such an extent at it cannot freeze to form ice so it melts of easily at the
prevailing temperature.
2 magnesium chloride remain effective at melting eyes
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