Final answer:
The Lewis structure of C2H2Cl2 is nonpolar.
Step-by-step explanation:
The Lewis structure of C2H2Cl2 consists of two carbon atoms bonded to each other, with one hydrogen atom bonded to each carbon atom, and two chlorine atoms bonded to each carbon atom.
Based on the arrangement of the atoms, the molecule is symmetrical. Therefore, the polarities of the bonds cancel each other out, resulting in a nonpolar molecule.
Polarity in a molecule is determined by the electronegativity difference between atoms and the molecular geometry.