polar group in a sentence

Examples

1. Valentine has proposed that Ojibwe dialects are divided into three groups : a northern tier consisting of Severn Ojibwe and Algonquin; a southern tier consisting of " Odawa, Chippewa, Eastern Ojibwe, the Ojibwe of the Border Lakes region between Minnesota and Ontario, and Saulteaux; and third, a transitional zone between these two polar groups, in which there is a mixture of northern and southern features ."
2. Polarity is a sort of continuum, running from ionic compounds that will dissociate into charged monatomic ions in solution ( NaCl forms hydrated Na + and Cl-in water, for instance ) to covalently-bound molecules with a significant dipole moment ( methanol or formaldehyde, say ) to predominantly nonpolar molecules with some polar groups ( long chain alcohols like talk ) 15 : 22, 3 May 2006 ( UTC)