In the liquid crystal, there is still orientational order. In experiment A the d optical isomer of a chiral anion is added to equal concentrations of the d and l isomers of a chiral cation. Only the d isomer of the chiral cation precipitates out in the salt. When looking down onto a face of the FCC and BCC cubic unit cells, the two arrangements of atoms shown below are seen by superimposing layer sequences. To conduct the experiment, the gas is compressed in a so-called anvil.
Dipoles can also occur in the solid state.
Dissecting a Polymerization Reaction Polyethylene is formed when the molecule ethylene is polymerized. More questions are needed for this section.