When the Coppock Curve gets down to a very low level and then turns up, it signals an important long term entry point. Coppock was a money manager who wanted to find the really great long term buy signals, and was not so much interested smaller swings.
It is inserted in the apparatus set-up between the reaction container and the gas collection system. It is packed with a solid water absorbing drying agent e.g. anhydrous calcium chloride (not for ammonia), calcium oxide (not acidic gases like sulphur dioxide, carbon dioxide and chlorine), anhydrous sodium sulphate.
And carbonate anion also has the valency two. So the formula ZnCO3. In ionic forms Zn2+ and CO32-. Zinc carbonate is formed by the reaction with zinc hydroxide or Zinc metal with carbonic acide. Carbonic acid is nothing but carbon di oxide gas dissolved in water. (Soft drink beverages) Zn + H2CO3 = ZnCO3 + H2 Zinc carbonate is different from zinc bi carbonate Zn(HCO3)2 By Dr M Kanagasabapathy Asst. Professor, Department of Chemistry Rajus College, Affiliated to M K university Rajapalayam (TN) India PIN 626 117.