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Fractional distillation separates the different molecules in a crude oil mixture because of their differences in boiling points. 

A fractional distillation column is heated at the bottom and gets p...

Hydrogenation is used to add hydrogens to the vegetable oil molecules. This process gets rid of the double bonds in the molecular structure, making the molecules saturated, which lowers the melting point ...

In terms of the structure, simple covalent substances are made up of molecules. These molecules are bonded together by a shared pair of electrons, which forms the strong covalent bond. Between molecules, ...

Atoms are really tiny particles that make up all substances in the universe. An element is made of one type of atom. An atom has a small central nucleus made up of smaller sub-atomic particles called prot...

Ionic: Metal and non Metal bond fomred , Metal DONATES an electron. electrostatic attraction between oppositely charged ions in a chemical compound Covalent: Bond between two non metals (similar electrone...