AP Biologymediummcq1 pt
Why is water a good solvent for NaCl but not for oil?
A.Water's polar molecules surround ions but cannot interact with nonpolar oil
B.Oil is denser than water
C.Water is nonpolar
D.NaCl is covalent
Explanation
Core Concept
Partial charges on water solvate Na⁺ and Cl⁻, pulling the lattice apart; oil's nonpolar chains offer no handle for those charges, so oil stays separate.
Correct Answer
AWater's polar molecules surround ions but cannot interact with nonpolar oil
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