The Scandinavian words (Old Norse mila, etc.) are from English. An ancient Roman mile was 1,000 double paces (one step with each foot), for about 4,860 feet, but there were many local variants and a modern statute mile is about 400 feet longer.
They are much weaker than ionic or covalent bonds and have a significant effect only when the molecules involved are close together (touching or almost touching). The figures show two arrangements of polar iodine monochloride (ICl) molecules that give rise to dipole-dipole attractions.Note: 1  Polar molecules have a partial negative end and a partial positive end. 2  The partially positive end of a polar molecule is attracted to the partially negative end of another.hey are much weaker than ionic or covalent bonds and have a significant effect only when the molecules involved are close together (touching or almost touching). The figures show two arrangements of polar iodine monochloride (ICl) molecules that give rise to dipole-dipole attractions.
Water (H 2 O) is an example of a polar molecule since it has a slight positive charge on one side and a slight negative charge on the other. The dipoles do not cancel out resulting in a net dipole. Due to the polar nature of the water molecule itself, polar molecules are generally able to dissolve in water. Other examples include sugars (like sucrose), which have many polar oxygenâhydrogen (âOH) groups and are overall highly polar. If the bond dipole moments of the molecule do not cancel