Most guests spend approximately 5-6 hours at the park. Whether you're looking for something simple and fun for the kids, something fun for both you and the kids, or thrill rides that are simply mind-blowing, Six Flags St Louis has everything you could possibly need for a wonderful time. Hurricane Harbor Water Park.
The reaction that occurs is a redox reaction. The Copper metal (Cu 0)on the copper pennies is oxidized in concentrated nitric acid to produce Cu 2 + ions. Copper is easily oxidized to Cu 2 +, which is blue in aqueous solutions (water) so you should see the solution turn blue as the copper penny reacts.he Copper metal (Cu 0)on the copper pennies is oxidized in concentrated nitric acid to produce Cu 2 + ions. Copper is easily oxidized to Cu 2 +, which is blue in aqueous solutions (water) so you should see the solution turn blue as the copper penny reacts.
The cent's composition was changed in 1982 because the value of the copper in the coin started to rise above one cent. This was mainly caused by inflation. Some 1982 pennies used the 97.5% zinc composition, while others used the 95% copper composition. With the exception of 2009 bicentennial cents minted specifically for collectors, United States cents minted after 1982 have been copper-plated zinc.