This seems to be talking about intermolecular forces. Look at the compound. If it is ionic, the IMF is ionic. If it is covalent, there are more options. First of all, is the molecule polar? if no, then the IMF is LD (london dispersion), which is the weakest. If the covalent compound is polar, then see if it is either HF (hydrogen fluorine), HN (hydrogen nitrogen), or HO (hydrogen oxygen). If it is, the IMG is an H-Bond, which is the strongest. If it is not one of those 3, it is a dipole.
Hydrogen Bond
a hydrogen bond
Hydrogen bonds occur between polar molecules such as water.
Polar water molecules are associated by hydrogen bonds.
A polar molecule has an uneven distribution of electron density, resulting in partially positive and negative ends. Hydrogen bonds occur between a hydrogen atom covalently bonded to a highly electronegative atom (such as oxygen or nitrogen) of one molecule and a lone pair of electrons on another electronegative atom in a different molecule. This allows for strong dipole-dipole interactions between polar molecules.
Polar molecules have a dipole moment and they have intermolecular forces that include dipole-dipole interaction. A hydrogen bond is the attraction between a hydrogen bonded to N, O, F atom with N, O, F lone pair. Small molecules that exhibit this effect are HF, H2O and NH3. The example molecules are all polar. The hydrogen bond interaction is stronger than a normal dipole-dipole interaction.
A bond between polar covalent molecules is called a hydrogen bond. It is a weak type of bond that forms between a partially positive hydrogen atom and a partially negative atom (such as oxygen or nitrogen) in another molecule.
This question makes no sense. if you mean 'how are water molecules polar' it is because the charge between oxygen and hydrogen is not completely cancelled out.
A hydrogen bond is a relatively weak bond formed between polar molecules. It occurs between a hydrogen atom bonded to an electronegative atom (such as nitrogen, oxygen, or fluorine) and another electronegative atom in a different molecule.
extra strong intermolecular attractions between polar molecules -apex
extra strong intermolecular attractions between polar molecules -apex
These molecules are similar.