This is a series of chemical reactions starting with sodium (Na) and ending with silver chloride (AgCl).

Na -> NaOH: Sodium reacts with water to form sodium hydroxide (NaOH).NaOH -> Na2CO3: Sodium hydroxide reacts with carbon dioxide to form sodium carbonate (Na2CO3).Na2CO3 -> NaCl: Sodium carbonate reacts with hydrochloric acid to form sodium chloride (NaCl).NaCl -> AgCl: Sodium chloride reacts with silver nitrate to form silver chloride (AgCl).