Formula of a substance with a covalent non-polar bond HCI, CO2, H2, H2O. Write its electronic and structural formula.

A covalent non-polar bond is possible between atoms with the same electronegativity. As a result of the creation of such a bond, the highest electron density is located in the center of the bond, at the same distance from the nuclei of both atoms.

Of the listed substances, only the hydrogen molecule H2 can have a covalent non-polar bond. The rest of the substances are created from atoms of different chemical elements, so the bond density shifts to a more electrically negative element.

Electronic formula of hydrogen: H ∙ ∙ H

Structural formula: H – N.