Question

Polarity and solubility.is water polar, nonpolar, or ionic?is Vinegar polar, nonpolar, or ionic?is iodine solution polar, nonpolar, or ionic?is rubbing alcohol polar, nonpolar, or ionic?is vegetable oil polar, nonpolar, or ionic?

Answer 1

Water is polar and can dissolve ionic compounds and polar molecules. Vinegar is also polar. Iodine solution is nonpolar and does not dissolve well in water. Rubbing alcohol and vegetable oil are also polar and nonpolar, respectively.

Step-by-step explanation:

Water is a polar molecule, meaning it has a slight positive charge at one end and a slight negative charge at the other. This polarity allows water to dissolve many ionic compounds and polar molecules. On the other hand, nonpolar molecules like those found in grease or oil do not dissolve in water.

Vinegar is also polar. It contains acetic acid, which has polar bonds due to the difference in electronegativity between carbon and oxygen.

Iodine solution is nonpolar. Although iodine is a polar molecule, it does not dissolve well in water because it is nonpolar and forms weak dispersion forces with water molecules.

Rubbing alcohol, which is also known as isopropyl alcohol, is a polar molecule. It contains an oxygen atom that is strongly electronegative, creating a polar bond.

Vegetable oil is nonpolar and does not dissolve in water. It is composed mainly of nonpolar hydrocarbon chains, making it immiscible with water.

Answer 2

In order to determine if a compound is polar, nonpolar, or ionic, we need to look at the main component of this compound and see the difference in the electronegativity between the elements, if the difference (which can be easily found in many tables online) between the electronegativity if high, then we have an ionic compound, if it is very low, then we have a nonpolar compound, if it falls in the middle, we have a polar compound.

For water, we have H and O, which are not high to be an ionic compound and not low enough to be nonpolar, as water is known the best polar solvent, water is a polar compound

Acetic acid is the main component of vinegar, and since it is an acid, it is also a polar substance and has a high solubility in water

Iodine solution is classified as nonpolar due to its concentration of elemental iodine, and it is better dissolved in oil

Alcohol substances are made with the same type of components as water, O and H, which also makes it polar

Vegetable oil, as an oil it is nonpolar, most oils are nonpolar

Therefore we have:

Water - polar

Vinegar - polar

Iodine - nonpolar

Alcohol - polar

Vegetable oil - nonpolar