Copper electrodes

Issy 20/8/15 Where was Otzi the Iceman discovered? Otzi the iceman was discovered in Italy, his 5,300 year-old corpses were found between the border of Austria and Italy. The Narrabeen man was found in 2005 in the Sydney basin next to a bus stop. When did otzi the iceman die? Otzi the iceman died in 1991 in the border of Austria and Italy. The Narrabeen man died 5,300 years ago north of Sydney next to a bus stop. How did otzi the iceman die? Otzi the iceman died by Exsanguination, a

: During each reaction, something happened. During reaction 1, after adding the nitric acid a red-brown gas was created. The copper first turned green after a few minutes turned into a blue solution. Reaction 2, When acid was added a blue precipitate formed. Reaction 3, when heated the solution turned into a black precipitate. I noticed that the darker particles were denser than water. Dark particles began to settle to the bottom. Reaction 4, Sulfuric acid dissolved the black precipitate back to

Percent Copper and Zinc in Pennies From Density Purpose: Practicing determine the density of the solution. Developing the method for determine the percent of density for the solution. Examining the linear relationship by learning to use the best-fit straight line. Using the linear relationship to determine the percent of density by the solution. Be familiar with recording data and observations. Methods & Material: Methods: Weight the mass for the different percent of zinc and copper mixtures

New studies have revealed that lead production varied in ancient Europe with production mirroring the rise and fall of the Roman empire in Western Europe but remaining strong throughout the rise and fall of the Roman empire in Eastern Europe. Lead production and toxicity persists to this day. Historical lead production Lead has fallen out of favor due to its toxicity however it was commonly used in ancient times. Some of the first evidence of lead is found in the form of metallic lead beads

up when it comes to mining the copper and nickel in the boundary waters. Sulfide mining has been stereotyped as a major pollutant to nearby waterways. As this may have been proven true with other mining corporations, PolyMet Mining has found a new way of reusing the sulfide as renewable energy instead of flushing it back into the waterways. Minnesota is home to one of the largest deposits of copper, nickel, and other precious metals. Currently there is only one copper and nickel mine currently being

4. Describe the procedure for extracting copper from one of its ores. Include relevant chemical reactions, equations and energy considerations involved. Extraction of copper from chalcopyrite (CuFe2) occurs using processes such as: mining & crushing, froth flotation, roasting & smelting and electrolytic refining. Mining the ore Copper ore contains approximately 0.5% copper and 99.5% unwanted rock. To help separate the mineral copper from the gangue (sand, rock and other impurities), the ore

The explicit journey through the history of Patera The Patera found in Greek South of Italy during the Archaic period c. 500 BC. Was a shallow pan made from bronze with a Kourous figure as it handle. This research essay will work to prove how the form of the Patera served a greater purpose to it functions through its significance journey through the craftsmanship of bronze, superior status of the Kouros and multipurpose usage it served. The bronze material which the Patera was crafted from is a valuable

Alchemy is used to change one element into another and make material from existing elements. Most of the original alchemists in Egypt tried to change common metal such as iron and lead into gold. It is a quest that has been interesting for people for thousands of years. Although most alchemists want to produce gold, many other alchemist use alchemy for medical purposes. They make medicine by using alchemy and some of the alchemists want to create a panacea which can cure any disease. ("Magic"). Because

Conservation of mass: How is copper transformed in chemical reaction? There were 3 objectives for this lab they were demonstrate that mass is conserved in chemical transformations, practice balancing out chemical equations for reactions observed in the lab and practice the skill of recognizing chemical reactions and making detailed observations. Part A of lab (preparation of copper (II) nitrate from copper metal). Weigh out ~ 0.2 g of copper foil pieces (record to the nearest .001 g) into a weigh

     Weil 1      Copper is one of the earliest elements known to man. Because of its distinct red color, Copper is very easily identified. In the ancient times, copper could be found lying in the ground in its unattached state without interaction to other substances. Copper and its compounds have many uses in today’s society. Copper has many chemical properties that make it unique. The Atomic number of copper is 29. An Atomic number is a measure of the amount of