This is what causes atoms to bond and what holds a molecule together. Electrons can be shared unequally in a molecule, creating a polar molecule. Opposite polar ends of molecules attract and hold one ...

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 ...

You can draw the structural formula for water and hexane or build models of these compounds to demonstrate why one is polar and the other is not. To Conduct Demonstration Two burets are provided on a ...