Question

you just learned the concept of \like dissolves like.\ this means that molecules that are polar will dissolve in polar substances. sugar is a polar substance, hence it dissolves in water. nonpolar molecules dissolve in nonpolar substances, which is why butter and oil mix.
what does the concept of \like dissolves like\ tell us about why oil and water do not mix?

Explanation:

The concept "like dissolves like" means polar substances dissolve in polar substances and non - polar in non - polar. Oil is non - polar and water is polar. Water molecules are more attracted to each other (due to their polarity) than to non - polar oil molecules.

Answer:

Oils are nonpolar substances. An oil molecule would not likely dissolve in water because water molecules are polar. At a molecular level, water molecules are more attracted to each other than they are to oil molecules.