This is a series of reactions showing the conversion of magnesium (Mg) to various compounds:

Mg → MgO (magnesium oxide) - This is a reaction where magnesium reacts with oxygen to form magnesium oxide.MgO → MgCl2 (magnesium chloride) - Magnesium oxide reacts with hydrochloric acid to form magnesium chloride.MgCl2 → Mg(OH)2 (magnesium hydroxide) - Magnesium chloride reacts with sodium hydroxide to form magnesium hydroxide.Mg(OH)2 → Mg(NO3)2 (magnesium nitrate) - Magnesium hydroxide reacts with nitric acid to form magnesium nitrate.