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Are there any choices? Because from what the question is it seems like we need choices to help
Answer:
i had this same question and the answer is electron.
Explanation:
helium
Explanation:
because it has the mass number of 4
According to Raoult's law, Vapor pressure is directly proportional to the mole fraction of the solution. As 1.0 M CaF2 has least moles here, it has lowest vapor pressure.
In short, Your Answer would be Option D
Hope this helps!