Chapter 18, Problem 27R

To determine

The correct term related to the phrase.

Explanation of Solution

Introduction:

A molecule with partially charged areas is called as polar molecules. When the two nonmetal atoms of different electronegativity share their electrons, then covalent bonds are formed. These molecules are called polar molecules.

The covalent bond is formed by two types of molecules. One is non-polar molecules and the other one is polar molecules.

Therefore, the polar covalent molecule is formed by the sharing of electrons but develops partial positive and negative charge due to the difference in electronegativity.

Conclusion:

Hence, a compound composed of two elements represents the formation of the covalent bond, and the molecule is said to be polar molecules.