Question

question 1
why do vinegar and oil separate in salad dressing?
answer
oil and vinegar only separate because they have not had enough time to mix properly.
both the oil and vinegar are hydrophobic, so they do not mix with each other.
the oil in salad dressing is hydrophobic whereas the vinegar is hydrophilic.
the oil in salad dressing is hydrophilic whereas the vinegar is hydrophobic.
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Explanation:

Oil is non - polar (hydrophobic) and vinegar is a water - based solution (hydrophilic). Hydrophobic substances do not mix with hydrophilic substances.

Answer:

The oil in salad dressing is hydrophobic whereas the vinegar is hydrophilic.