If you want to download this video then go to this site: http://www.downloadvideos.co.n... . Sodium iodide solution is added to mercury(II) chloride...
DO NOT ATTEMPT THIS DEMONSTRATION AT HOME.Transparent (and mostly colorless) solutions of lead nitrate and potassium iodide are mixed to produce the bright yellow precipitate...
Electrolysis of potasium iodide solution creates hydrogen gas and hydroxide at the cathode. Solution around the anode is turning brown as iodine is created.