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1 vote
Why doesn’t vegetable oil stay dissolved in vinegar to make a salad dressing?

2 Answers

6 votes
In order for things to dissolve they must dissolve in a solvent similar to them (polar and polar or nonpolar and nonpolar) Oil is nonpolar and vinegar is polar therefore oil wont dissolve in vinegar
User Vargonian
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5 votes
Vegetable oil is nonpolar, whereas vinegar is polar (about 95% water). Like dissolves like so polar and nonpolar dont mix.
User Scottfrazer
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