Development of the Modern Freezer. Bacteria are usually the cause of food decay, but they can't grow as well or at all in freezing temperatures, which are at 32 degrees Fahrenheit (0 degrees Celsius) or lower.
HF- polar molecule: dipole-dipole forces. There are also dispersion forces and H bond between HF. BF3- nonpolar: dispersion forces. Ar- Dispersion forces between Ar atoms.
It is the strongest of the fundamental forces, but acts over a very short distance (10 -15 m).The strong force is what binds quarks in combinations so they can form protons and neutrons and many more exotic subatomic particles.