a) The temperature of a sample of pure water is \( -2^{\circ} \mathrm{C} \). Is the sample in the solid state? b) If the freezing point of a sample of water is depressed to \( -4^{\circ} \mathrm{C} \) by the add salt, in what state will the sample be at \( -2^{\circ} \mathrm{C} \) ? c) Explain why salt is used on icy streets and sidewalks.
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Water freezes at 0°C, so at -2°C, it would be frozen. Show more…
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