Question

assignment #4 quiz
(a4 - 1 point) why does oil not dissolve in water?
water and oil are both polar so they repel each other.
water and oil are both nonpolar so they dont stick to each other.
water is polar and oil is nonpolar so hydrogen bonds cannot form between water and oil.

Explanation:

Water is a polar molecule due to its bent shape and the electronegativity difference between oxygen and hydrogen, allowing it to form hydrogen - bonds. Oil is non - polar, consisting mainly of hydrocarbon chains with no significant charge separation. For a substance to dissolve in water, it needs to interact favorably with water molecules, usually by forming hydrogen bonds or ion - dipole interactions. Since oil is non - polar, it cannot form such interactions with polar water molecules.

Answer:

Water is polar and oil is nonpolar so hydrogen bonds cannot form between water and oil.