The unique properties of water are due to the of water molecules and the ability of water to form with other water molecules and with other polar molecules. polarity; hydrogen bonds

polarity; polar covalent bonds

hydrophobicity; hydrogen bonds

electronegativity; polar covalent bonds

The correct answer is: polarity; hydrogen bonds.

Explanation:

Water has unique properties because of the way their atoms interact with one another, and other molecules.

A water molecule consists of 2 hydrogen atoms and 1 oxygen atom: the hydrogen atoms are very electropositive, while the oxygen atom is very electronegative.

Electronegativity is a property that describes the behavior of atoms when they interact with other elements - the more electronegative an element is, the more it attracts the electrons of other elements. The difference in electronegativity between hydrogen and oxygen is what makes the bond between these two a polar covalent one. One end of the water molecule will be negatively charged, and the other end will be positively charged: this is why it's called a polar molecule.

While a water molecule has a polar covalent bond, the bond between the water molecules with one another is given by the hydrogen bonds that are established between the hydrogen of one water molecule with the oxygen of the other water molecule.

Hydrogen bonds are weaker than covalent bonds.

straight probes are used primarily for measuring flow as it is approaching the test area. its geometry allows the probe to be mounted so that it is in the direct line of airflow.