CO2 (Carbon Dioxide) for Good Use.

Its Good use and defination ? See co2 is actually increasing day to day in our atmosphere which very harmful for living beings. But we will discuss about CO2 Carbon dioxide : Carbon dioxide occurs in free state in atmospheric air. It is found in chalk, shahabad stone and limestone in compound form. Carbon dioxide is prepared in the laboratory from Calcium Carbonate and hydrocloric acid. Carbon dioxide is a tasteless, odourless and colourless gas. It is used in heavier than air and sparingly soluble in water. Carbon dioxide neither burns nor supports burning. It is used in the manufacture of aerated cold beverages, dry ice, washing soda and sodium bicarbonate (baking powder or NaHCO3). It is used as fire extinguisher. Plants use carbon dioxide to make their own food. We will some chemical reactions. Lets Name CO2 as 'C' b'cause it make easy to remember. I] C + H20 -----> H2CO3 (carbonic acid) II] C + CaO -----> CaCO3 (calcium carbonate) III] C + 2NaOH ---- Na2CO3 + H2O (sodium carbonate) IV] C + Na2CO3 + H2O----> 2NaHCO3 (sodium bicarbonate) V] C + Ca(OH)2 ---> CaCO3 + H2O