Question

1. what is the strongest type of intermolecular force present between separate water molecules?

dipole-dipole forces
dispersion forces
hydrogen bonding
covalent bonding

Explanation:

To determine the strongest intermolecular force in water (\(H_2O\)):

1. Dipole - dipole forces: Occur between polar molecules, but water has a stronger specific type.
2. Dispersion forces: Weakest intermolecular force (temporary dipoles), not the strongest here.
3. Hydrogen bonding: A special dipole - dipole force where \(H\) is bonded to \(F\), \(O\), or \(N\). In \(H_2O\), \(H\) is bonded to \(O\), so hydrogen bonds form between water molecules. These are stronger than regular dipole - dipole or dispersion forces.
4. Covalent bonding: Intramolecular (within a molecule), not intermolecular (between molecules).

Answer:

C. hydrogen bonding