ionic compounds are polar compounds because they have charge separation between them
NaCl is an ionic compound, certainly not nonpolar.
CaF2 is considered an ionic compound because it is composed of a metal cation (Ca) and a nonmetal anion (F) bonded together through ionic bonds. It is not considered as polar or nonpolar since ionic compounds do not have distinct polar or nonpolar characteristics as covalent compounds do.
Sodium bicarbonate is an ionic compound.
Polar!
Non-polar compounds are least likely to dissolve in water because water is a polar solvent and non-polar compounds do not interact well with polar substances. Ionic compounds and charged compounds are more likely to dissolve in water due to their ability to interact with the polar water molecules.
Kerosene is a non polar solvent (or non ionic solvent) and cannot dissolve an ionic compound such as salt.
KCl is an ionic compound. The electronegativity of potassium (K) is approximately 0.82. The electronegativity of chlorine (Cl) is approximately 3.16. The difference between these electronegativities is 2.34. This high electronegativity difference is what makes potassium chloride an ionic compound. If the electronegativity difference of two elements is greater than 1.7, it is considered to be an ionic compound. If the difference is between 0.4 and 1.7, the compound is considered to be polar covalent. If the difference is less than 0.4, the compound is considered to be covalent. If the difference is 0 (i.e. the two elements are the same), then the compound is considered to be pure covalent. KCl is ionic because K's electronegativity is 0.82 and Cl's is 3.16. A compound is ionic when the electronegativity on the Pauling Scale is more than 2.1. The difference 2.34, so it is ionic.
Calcium hydroxide is ionic, and therefore polarity does not occur.
Sodium borate is an ionic compound.
Cobalt is an element. Polar, non-polar and ionic are terms to describe compounds. They measure whether the compound as delta charges or their form of bonding. Thus, it is not applicable to cobalt (Co), which is an element and pure by itself.
MgBr2 is ionic, and so would be considered polar.
LiCl is an ionic compound formed by the transfer of electrons from lithium (Li) to chlorine (Cl). It is considered polar due to the difference in electronegativity between Li and Cl, creating a partial positive charge on Li and a partial negative charge on Cl.