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atomic number 1 Discovery of Hydrogen:  A favorite school chemistry experiment is to add a surface such as magnesium to an dit. The metal reacts with the venereal infection, forming a salt and releases hydrogen from the irate. The hydrogen bollix bubbles up from the tranquil and students collect it in meek quantities for further experiments, such as the pop-test.  The prototypic recorded guinea pig of hydrogen do by human action was in the first half of the 1500s, by a similar method acting to that use in schools now. Theophrastus Paracelsus, a physician, dissolved ironin sulfuric acid and undercover agent the release of a squander. He is reported to redeem verbalise of the experiment, Air arises and breaks forth like a wind. He did not, however, bump any of hydrogens properties.(1) Turquet De Mayerne repeated Paracelsuss experiment in 1650 and anchor that the gas was flammable.(2) Neither Paracelsus nor De Mayerne proposed that hydrogen could be a pe rtly part. Indeed, Paracelsus believed at that place were only three elements - the tria prima - salt, sulfur, and mercury - and that all other(a) nubbles were made of different combinations of these three. (3) (Chemistry still had a big government agency to go!) In 1670 Robert Boyle added iron to sulfuric acid. He showed the resulting (hydrogen) gas only burnt if carriage was present and that a fragment of the air (we would now call it oxygen) was consumed by the burning.(4)  Hydrogen was first recognized as a distinct element in 1766 by Henry Cavendish, when he prepared it by reacting hydrochloric acid with zinc. He described hydrogen as inflammable air from metals and established that it was the same material (by its reactions and its density) regardless of which metal and which acid he used to produce it.(1) Cavendish also observed that when the substance was burned, it produced piddle.  Lavoisier later named the element hydrogen (1783). The name c omes from the classical hydro substance wa! ter and genes meaning forming - hydrogen is one of the twain water forming elements. ...If you want to get a full essay, read it on our website: OrderCustomPaper.com

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