AP BIOLOGY

Detailed explanation-1: -Covalent molecules made of only one type of atom, like hydrogen gas (H2), are nonpolar because the hydrogen atoms share their electrons equally.

Detailed explanation-2: -Hydrogen fluoride (HF) can be described as a very polar molecule, while hydrogen (H2) is nonpolar. The origin of the polarization of the HF covalent bond has to do with electronegativity, an inherent property of all atoms.

Detailed explanation-3: -Polarity create due to the difference in electronegativity of both atom in a molecule except H2 all other molecule have the different atom so they will have the polarity while H2 will be non polar. Was this answer helpful?

Detailed explanation-4: -Water (H2O) is polar because of the bent shape of the molecule. The shape means most of the negative charge from the oxygen on side of the molecule and the positive charge of the hydrogen atoms is on the other side of the molecule. This is an example of polar covalent chemical bonding.