(Image: Max Planck Institute for Iron Research) Van der Waals forces are weak, short-range attractive forces that exist between all molecules ... indispensable tool for unraveling the mysteries of ...

All ionic compounds have a high melting point ... the molecule itself is non-polar and the only intermolecular force present will be weak London dispersion forces. Ammonia (NH 3) and hydrogen ...

The alkanes are a homologous series with a structure based on a carbon chain - each carbon atom forms four covalent bonds The intermolecular forces vary between molecules, so different organic ...