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  • Historians And Archaeologists About The Iceman
    2,937 words
    1. Explain why the iceman was so well preserved? (source one) It is said that a frozen body will stay preserved over hundreds, even thousand of years. During the first stage of investigations Austrian archaeologist Konrad Spindler researched the layout which had proved that the iceman's body position and placement of weapons were preserved in the same position from when the Iceman had died, it had also been proved that the body was initially covered in a thin layer of snow which had helped compl...
  • Use Copper In Their Blood
    1,167 words
    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 protons in the nucleus of an atom. Protons ...
  • Use Of Copper
    530 words
    COPPER Copper is a naturally occurring element that is not radioactive. It has a bright, metallic luster, and a hardness of three. It takes on a cubic crystal structure, with a density of 8.96. Copper is malleable, ductile, and a very good conductor of heat and electricity, second only to silver. This natural resource melts at 1,083 degrees celcius and boils at 2,567. If you ever feel like boiling copper at home, I recommend a very big oven. All copper falls into two main categories: oxidized or...
  • The Electrolysis Of Copper Sulphate Solution Using Copper Electrodes
    2,478 words
    Planning I did some preliminary work to see which current values, and for how long to time. The results of this are in the tables below: Electrode-1 AMass before (g) Mass after (g) Mass change (g) Anode 1.381. 30-0.08 Cathode 1.351. 65+0.30 This was done for 10 minutes. The mass lost at the anode should equal the mass gained at the cathode, which this doesn't, it has a percentage inaccuracy of 0.22. 30100 = 73% which is very inaccurate, This may be due to the current being too high, so the coppe...
  • Concentrations Of 0 1
    1,072 words
    Aim To find out the lowest concentration of copper (II) sulphate solution that brings about full denaturation of egg albumen. Background Information Denaturation is the breakdown of the bonds forming the quaternary, tertiary and secondary structures of proteins and nucleic acids. Changes in the shape of a protein lead to its inactivation. Albumen is a globular protein, which contains carbon, oxygen, nitrogen and hydrogen. Proteins usually contain sulphur too. Globular proteins are composed of a ...

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