substances involved in this experiment may be hypothesized‚ observed‚ and validated. Material and equipment: X 12 test tubes X 10-mL graduated cylinder X Water ¡V deionizer (distilled water) X 0.1M cobalt (II) chloride hexahydrate X 95% ethanol X 0.1M cobalt (II) chloride hexahydrate dissolved in 95% ethanol X zinc X 1M hydrochloric acid solution X 0.1M copper (II) sulfate solution X 0.5M sodium hydrogen carbonate solution X 1M ammonia solution X
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move down a group in the periodic table. This means in regards to solubility that the more you farther you move down the group the more insoluble the element is when combined with hydroxides‚ chlorides‚ bromides‚ iodides‚ sulfates‚ carbonates‚ and oxalates. My results were consistent with this theory in that the mixtures went from no reaction to forming a precipitate or from forming a light precipitate to a heavy one as the elements moved down the periodic
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Republic of the Philippines NUEVA ECIJA UNIVERSITY OF SCIENCE AND TECHNOLOGY San Isidro campus‚ San Isidro‚ Nueva Ecija FEASIBILITY OF UBE AS BASED FOR ESPASOL MAKING In Partial Fulfilment of the Requirement in Science Technology and Society Mr. Reynante Bustillos GENERAL SCIENCE MAJOR: abegail cabalar BSE- ll March 2013 i Acknowledgement We wish to convey our nearest appreciation to the following person
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varying amounts of carbon and metals such as tungsten‚ molybdenum‚ vanadium‚ and cobalt‚ giving them the strength‚ durability‚ and anti-corrosion capabilities required by their different uses. Stainless steel‚ which has eighteen percent chromium and eight percent nickel alloyed to it‚ is valued for its anti-corrosive qualities. Some iron-based alloys like Alnico-4‚ consists of 55% iron‚ 28% nickel‚ 12% aluminium‚ and 5% cobalt‚ are used as magnets. Other alloys‚ such as Nichrome‚ a nickel based alloy
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HISTORY OF CUTTING TOOL MATERIALS • Cutting tool used during the industrial revolution in 1800 A.D • First cutting tool was cast using crucible method (1740) and slight hardened by H.T. • 1868: R. Mushet found by adding Tungsten we can increase hardness and tool life ( Air Quenching) • F.W.Taylor in Pennsylvania did the most basic research in metal cutting between 1880-1905 • Invented high speed steel (better H.T. process) • Better alloy
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EXPERIMENT NO. 2 (A) Types of cutting tools: Single-point cutting tools can be classified by their motion as linear or rotator‚ depending on whether they rotate while cutting. Linear cutting tools include tool bits (single-point cutting tools and broaches. Rotary cutting tools include drill bits‚ countersink and counter bores‚ taps and dies milling cutters and reamers. Other cutting tools‚ such as band saw blades and fly cutters‚ combine aspect of linear and rotary motion. Following are different
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Results B - Do your results agree with your expectations from the solubility rules/table? Our results seemed to largely agree with the established solubility rules/table; however‚ a few reactions with the commonality of being mixed with Co(NO3)2 (cobalt nitrate) [reference Row A‚ Columns 2‚ 3‚ and 4] seemed to have such a pale pink tone that it was difficult to decide whether that could have been a precipitate or the lighting in the area where the experiment took place. Ultimately‚ our lab group
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magnesium‚ and strontium were mixed with solutions containing the sulfate‚ carbonate‚ oxalate‚ and iodate polyatomic anions. Any changes that indicate a chemical reaction such as a color change‚ the formation of a precipitate‚ or the evolution of a gas should be noted. Each mixture contained five drops of the nitrate solution being tested‚ mixed with five drops of the solutions containing sulfate‚ carbonate‚ oxalate‚ or iodate. After mixing‚ the observation of chemical change was
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historical failure of artificial implant restorative procedure has been due to the wear of components with subsequent bone resorption and aseptic loosening that limits the lifespan of implants. Multiple different materials made from stainless steel‚ cobalt‚ chromium‚ titanium‚ and tantalum have been tested throughout history as replacements for bone.
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Helium -He sells Helium while eating a hot dog. B Boron -You might be a moron‚ but Bohr wasn’t‚ nor was he bored‚ but for some reason there’s an element called Boron and its symbol is a “B.” Co Cobalt -Corn on the cob is very different from cobalt‚ so don’t jumble them together‚ Cobalt is an element symbolized by “Co.” Au Gold -What a silly combo‚ gold doesn’t start with “Au” but I guess things in life don’t make sense all the time. Na Sodium -Sodium is n/a for thee question asked
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