In chemistry, polarity refers back to the separation of electrical cost inside a molecule or chemical compound, leading to a internet optimistic or adverse cost on both finish of the molecule. Molecules are categorized as polar, nonpolar, or ionic primarily based on their polarity and the varieties of chemical bonds they comprise.
Polar molecules have a everlasting dipole second, which means that they’ve a separation of optimistic and adverse costs. This happens when the electronegativity of the atoms within the molecule is completely different, inflicting the electrons to be unequally shared. Examples of polar molecules embody water (H2O) and hydrogen chloride (HCl).
