AP BIOLOGY

Detailed explanation-1: -Therefore, when a hydrogen atom is bonded to common nonmetals, the resulting polar bond has a partial positive charge on the hydrogen atom.

Detailed explanation-2: -This unequal distribution of electrons is known as a polar covalent bond, characterized by a partial positive charge on one atom and a partial negative charge on the other.

Detailed explanation-3: -The more strongly an atom attracts the electrons in its bonds, the larger its electronegativity. Electrons in a polar covalent bond are shifted toward the more electronegative atom; thus, the more electronegative atom is the one with the partial negative charge.

Detailed explanation-4: -Nonpolar molecules do not have a partial charge. Nonpolar molecules don’t react to an electric field. Non-polar molecules are not very soluble in a polar solvent(e.g., water) but very soluble in non-polar solvents (e.g., benzene, oil).