Question

Which type of attraction can be used to explain the unusually high boiling point of h2o??

1. Ionic bonding
2. Hydrogen bonding
3. Polar covalent bonding
4. nonpolar covalent bonding

Answer 1

Hydrogen bonding

Step-by-step explanation:

Dipole-dipole forces are forces of attraction between polar molecules. These molecules attract each other when the positive end of one of them is close to the negative end of the other.

Hydrogen bonds are a type of dipole-dipole force. In this interaction, a molecule that presents hydrogen interacts with another that presents an atom with a high electronegativity, such as oxygen, fluorine or nitrogen (O, F, N). In this way, an interaction is established between hydrogen and the electronegative atom, due to its opposite charges.

When two water molecules are very close to each other, an attraction is established between the oxygen of one of the molecules, which has a negative partial charge, and one of the hydrogens of the other molecule, which has a positive partial charge. In this way a hydrogen bond is formed.

Answer 2

The answer is 2. Hydrogen bonding. The strong interaction called hydrogen bonds account for the ability to absorb heat and the high boiling point of water. As relatively powerful intermolecular forces of attraction, the hydrogen bonds in water requires significantly more heat energy to break.