Which of the following would be the least effective in melting ice on a sidewalk? Assume you have the same number of moles of each compound,dissociation is ideal,and colligative properties are the only consideration.

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The effectiveness of a compound in melting ice on a sidewalk is dependent on its ability to dissociate into ions in solution. CuCl has a lower degree of dissociation compared to the other compounds listed, making it the least effective in melting ice. The other compounds all have a high degree of dissociation, making them more effective in lowering the freezing point of water and melting ice. Of the other choices, A) NaCl and E) CaCl2 are commonly used in de-icing applications and would be good choices.

Which of the Following Would Be the Least Effective in Melting