investigation‚ hydrochloric acid solution is used which is toxic by all routes of exposure and is also a lung irritant. To avoid harm and ensure safety‚ eye protection and skin protection must be used. Equipment: * Metal tongs * Bunsen Burner * Zinc * Lead * Magnesium * Iron * Tin * Aluminium * Copper * Splint * 50 Ml Hydrochloric acid solution * 8 Test tubes * Measuring Cylinder * Beaker Method: Part A: Reaction of Metals with Oxygen 1. Hold each
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Nanotechnology : Side Effects of nanotechnology in cosmetics brand The basic definition of nanotechnology is the engineering of functional systems at the molecular scale. Both current work and concepts are cover and more advance in this technology (Acknowledging your sources‚ n.d.). It is also refers to construct items from the bottom up due to the ability of projected for higher performance using the modern technology and tools. Nanotech is also a study of atom and molecules around us that we
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Illustrating the Oxidation States of Mn & V © KCl http://hk.geocities.com/fatherofchemistry Procedure © KCl http://hk.geocities.com/fatherofchemistry Discussion Part A: Making Mn(VI) from Mn(VII) and Mn(IV) 1.> Explain why only one of the three mixtures reacted to give green Mn(VI). [ANS] By Le Chatelier’s Principle‚ only the alkaline medium will shift the equilibrium to right and yield green MnO42-. 2.> What happened when acid was added
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Making our journey to the 21st-century a question has arisen in the minds of the United States government leaders: should America continue or discontinued the penny? Well‚ why continue a coin of such little value and significance? The penny should be eliminated because the uneconomical coin is a waste of time‚ resources‚ and money. Too much time is spent in vain searching for lost pennies. According to MIT graduate Jeff Gore‚ mentioned in the article Penny Pinchers by Rick Khan‚ four hours are spent
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This happened because of the carbon dioxide | Weight before 120.3 g | Part C | Zinc with Hydrochloric acidIt bubbled up like it was boiling and produced hydrogen gas. | Zinc weight- 1.5 | Part D | It took a little while of just clear then turned into a Carolina blue precipitate | | Part E | Zinc turned fire red (The copper was already red)Liquid turned a tar heel blueWarm on the bottom | | Part F | H2O2 Hydrogen proxide KI |
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Financial Appraisal Group 08 WAQAS AHMED 117 IJAZ SHIGRI 25 SABIHA RIZWAN 83 SHAISTA ASAD 90 HINA ZEHRA 22 Project: Mineral Water Plant GENERAL BREIFING WORLD’S PRESPECTIVE: Traditionally‚ Mineral water was water from a mineral spring containing various minerals such as salts and sulfur compounds. After emerging the theme of safe drinking water and expanding trend of tourism and portability‚ Mineral water started to be bottled and gradually made a
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Corrosion Let metal sit surrounded by oxygen for a while and the metal will corrode. Corrosion is the chemical reaction that takes place when a metal is in contact with oxygen. The metal reacts with the oxygen to form a compound called an oxide on the surface of the metal. The metal becomes tarnished and loses its shine. Metals high in the reactivity series (an observable series of metals‚ in order of reactivity from highest to lowest) corrode more quickly than less reactive metals
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Potatoes May Power The Batteries Of The Future Friday‚ June 18‚ 2010 - by Ray Willington Oh‚ batteries. Can’t live with ’em‚ can’t live without ’em. It sounds like a power ballad‚ but it’s the story of our lives around here. We’ve been dealing with lofty promises and batteries that kick the bucket far too early‚ for years now. And the fact that we’re still dealing with lead-acid batteries is sort of a baffling thing to wrap one’s mind around. But all of that just might be changing. We won’t get
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through observations‚ the identity of substances produced in a chemical reaction. Materials: Safety Goggles Stirring rod Magnesium ribbon Solid CuSO4•H2O Matches Test tubes Copper metal 3M HCl Red and blue litmus strips 0.1M AgNO3 Zinc metal 0.1M Pb(NO3)2 Test tube holder 0.1M KI Bunsen burner 0.1M Na2NO3 Crucible tongs 1.0M NaOH Water (H2O) 0.1M Ca(NO3)2 50mL beaker 1.0 CuSO4 Procedure: Using the crucible tongs‚ take a magnesium strip and hold it in hot spot
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out of the 9 tests produced results that were inconclusive and therefore three cations were identifiable. When a white precipitate forms as more sodium hydroxide was added to the unknown substance the possible cations include: Aluminium‚ Lead (II) or Zinc. Furthermore if a white precipitate forms that does not dissolve as more ammonia solution is added it could mean the cation could be Aluminium‚ Lead (II) or Magnesium. This therefore means that further tests would need to be carried out in order to
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