Complex sentence: Magnesium fluoride (MgF 2) is a white crystalline salt composed of one magnesium ion and two fluoride ions, and is used in the electrolysis of aluminium ore.
Split into simpler sentences: Magnesium fluoride (MgF 2) is a white crystalline salt composed of one magnesium ion and two fluoride ions. It is used in the electrolysis of aluminium ore.