A substance that contains polar covalent bonds may not be overall polar. This is due to the shape of the molecule. Water molecules are polar molecules. Both of the bonds inside the molecule are polar ...

For decades, chemistry students have learned a simple truth: polar and nonpolar substances don’t mix. Water and oil stay apart. But researchers from Chalmers University in Sweden and NASA’s Jet ...

The discovery of conductivity and magnetism at the polar–nonpolar interfaces of insulating nonmagnetic oxides such as LaAlO3 and SrTiO3 has raised prospects for attaining interfacial functionalities ...