Amalgam (chemistry) with copper. A nitric acid solution of salts under investigation is applied to a piece of copper foil, and any mercury ions present will leave spots of silvery-coloured amalgam. Silver ions leave similar spots but are easily washed away, making this a means of distinguishing silver from mercury. The redox reaction involved where mercury oxidizes the copper is: Dental amalgam has been studied and is generally considered to be safe for humans, though the validity of some studies and their conclusions have been questioned. Amalgam (chemistry) An amalgam is an alloy of mercury with another metal, which may be a
You Can't Always Get What You Want You Can't Always Get What You Want "You Can't Always Get What You Want" is a song by the Rolling Stones on their 1969 album "Let It Bleed". Written by Mick Jagger and Keith Richards, it was named as the 100th greatest song of all time by "Rolling Stone" magazine in its 2004 list of the "500 Greatest Songs of All Time". Jagger commented on the song's beginnings: "You Can't Always Get What You Want" was the first song recorded for the album. It exists in two versions, a 5:00 single mix and a 7:28 album mix. "You Can't Always