Question

which of the following is least likely to dissolve in water? nonpolar fats and oils salt made of a positive sodium ion and a negative chloride ion polar sugar molecules all of the substances will dissolve easily in water

Explanation:

Water is a polar molecule, and the principle "like dissolves like" applies to solubility. Polar substances (like salt, polar sugar) dissolve in polar water. Nonpolar fats and oils are nonpolar, so they don't interact well with polar water and are least likely to dissolve. The option about all substances dissolving is incorrect as nonpolar fats/oils don't. Salt (ionic, which is highly polar) and polar sugar dissolve in water.

Answer:

A. nonpolar fats and oils