In terms of molecular structure, describe the difference between a polar molecule and nonpolar molecule

Polar molecules occur when there is an electronegativity difference between the bonded atoms. Nonpolar molecules occur when electrons are shared equal between atoms of a diatomic molecule or when polar bonds in a larger molecule cancel each other out.

Explanation:

Polar molecules include

bent,

planar

trigonal planar,

Non-polar molecules include

linear