How Does Copper Impact Society

The purpose of the experiment is to cycle solid copper through a series of five reactions. At different stages of the cycle, copper was present in different forms. First reaction involves reaction between the copper and nitric acid, and copper changed from elemental state to an aqueous. The second reaction converted the aqueous Cu2+ into the solid copper (2) hydroxide. In the third reaction Cu(OH)2 decomposed into copper 2 oxide and water when heated. When solid CuO reacted with sulfuric acid, the copper returned to solution as an ion (Cu2+). The cycle of reactions was completed with the reaction where elemental copper was regenerated by Zn and Cu

For our science assessment we had the task to research about a metal of our choice. Since I am really into computers, I chose copper. A metal used in all kinds of wires, cpu’s and other stuff without a computer wouldn’t work. This fits really well into what we have to do for the second part, describe how this metal has helped human society.

Did you know the Statue of Liberty is made of copper? The Statue of Liberty is not originally green, it was a dull brown colour but turned green from many years of oxidation.Copper (Cu), Copper’s atomic number is 29 and has the atomic weight of 63.546.Copper is a mineral and an element essential to our everyday lives. It is a major industrial metal because of its high ductility, malleability, thermal, electrical conductivity and resistance to corrosion. It is an essential nutrient in our daily diet. And, its antimicrobial property is becoming increasingly important to the prevention of infection. It ranks third after iron and aluminum in terms of quantities consumed in the USA.Copper has the melting point of 1,981° F (1,083° C) and a boiling

As people found new normal assets underneath the Earth's surface, conventional weapons were swapped as techniques for metal-working created. Copper was the only metal known to human being from long time, so copper significantly contributed to the ancient world by helping cultures of Egypt, Rome, Indus, China grow. So copper replaced stone in weapons. The Sumerians was the first people use copper as a weapon, copper maces were in high demand at that time. Native American mostly uses knifes and flint spears but uses copper for the decoration in the ceremony. It was discovered by the ancient artisans that copper losses its edge easily, they can be sharpened without much difficulty. Despite of drawbacks of copper it was being used as weapon, along with maces, bow and arrow and slings was used. It was very much common to the hunters as it was very convenient to handle and target achieve the arrow was much accurate. After a discovery of pure copper in anatolia, its metallurgy spread in Egypt , Mesopotamia, India, China and Europe. Now the alloy of copper and tin was developed and used very much as it was much harder than copper. This also lead to the flourishment of the

|1. Copper metal (penny) at the start |Tarnished, worn out, brownish, copper-colored, fine solid. |

Purpose: The purpose of this experiment was to observe the many physical and chemical properties of copper as it undergoes a series of chemical reactions. Throughout this process, one would also need to acknowledge that even though the law of conservation of matter/mass suggests that one should expect to recover the same amount of copper as one started with, inevitable sources of error alter the results and produce different outcomes. The possible sources of error that led to a gain or loss in copper are demonstrated in the calculation of percent yield (percent yield= (actual yield/theoretical yield) x 100.

The lab performed required the use of quantitative and analytical analysis along with limiting reagent analysis. The reaction of Copper (II) Sulfate, CuSO4, mass of 7.0015g with 2.0095g Fe or iron powder produced a solid precipitate of copper while the solution remained the blue color. Through this the appropriate reaction had to be determined out of the two possibilities. Through the use of a vacuum filtration system the mass of Cu was found to be 2.1726g which meant that through limiting reagent analysis Fe was determined to be the limiting reagent and the chemical reaction was determined to be as following:-

Midwest Copper Mining’s (MCM) biggest problem they are facing is that of sustaining supportable profit growth, as the undercurrents of the copper mining industry are changing. In particular, they need to figure out how they are going to increase their capacity to meet demands globally. They also need to figure out how to do this without disrupting the current culture of the business. They have been very successful and have created process and procedures that have kept them sustainable over the years. With the changing of the copper industry, MCM needs to re-evaluate their business strategy, make changes as necessary, in order to continue to be a successful company that is both a cost-leader and a differentiator.

One positive impact of copper mining is that it has a great impact on the economy, as it is a multi-purpose metal. It can be used for infrastructure, motor vehicle radiators and heating systems as well as electrical generators and motors for electrical wiring. Furthermore, various establishments will purchase the metal. Although it’s not as costly as gold, copper is sought out for its versatility.

He provides insight on how material science and stuff has affected civilizations in the past and how it will continue to influence civilizations in the future. Stuff Matters is an interesting and enlightening non-fiction book that changes one’s perception of stuff. Miodownik describes in detail how natural elements are manipulated by man to create man-made materials at the same minuscule scale that takes place in nature. Scientist over time have developed an increased knowledge of the chemistry and elements required to develop new materials used in advancing technology. Miodownik shares the

1 Extremely Basic Elements Why does the wire have to be copper? Because copper is a more electrically conductive material. The electrical conductivity of a material is a result of the movement of charged particles such as electrons. Matter (including copper) is made of charged particles such as leptons and quarks.

Copper is a common element. Copper is used in large amounts to make wire. Copper is used in coins. Pennies are now made of zinc and covered in copper. Copper can be strengthened by adding metals to it. Coppers symbol is Cu and its atomic number is 29. It is a ductile metal. Pure copper is used as a conductor of heat. It is also used as a conductor of electricity. It is a building material. Its melting point is 36673 Degrees fahrenheit. It was discovered in the 9000 BC.

     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.

into weapons or tools. Copper has been one of the most useful metals for over

Copper and copper alloys are widely applied in instruments and machines due to its high strength, excellent properties of thermal conductivity, and low price.With the rapid development of modern industry, people put forward higher demands for Cu alloy.The demand is in both terms quality as well as quantity, for the latter part research has been focused on the improvements in extraction processes, mining from ores than further extraction of copper to its purest form to increase productivity in measures of quantity. Also from a long time quality of metals is also a big challenge for a metallurgist. Quality measured in many terms like wear resistant, corrosion resistant, ductility, conductivity(both electrical and thermal), durability, abrasion etc. But as a metallurgical engineer our focus is on improving the mechanical properties like hardness, yield strength, ductility, corrosion resistance (environment specific), thermal properties and microstructure. It has been observed that cryogenic treatment can play the effects of increasing mechanical properties and dimensional stability.