Argument essay Chip or Not to Chip? In 2006‚ 44-year-old William Koretsky was unconsciously taken to the hospital after he was in a serious car accident. An emergency room scanner revealed an implanted Radio Frequency Identification Device (RFID) chip in his arm. Doctors identified and reviewed Koretsky’s health history using an online database‚ to learn that he had type-one diabetes. Physicians quickly began monitoring his blood sugar level while treating his injuries. According to the 2006
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hydrogen -A decrease in the oxidation state Objective: To find the redox reactions between a metal and dilute acid‚ metal-metal ion displacement and halogen displacement reaction. Materials: Test tubes (8)‚ pea size samples of the following metals; copper‚ lead‚ magnesium and zinc (10 ml)‚ 2M hydrochloric
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How does acid precipitation affect marble and limestone buildings? Acid rain is a type of precipitation that is characterised by containing contaminating substances such as sulphuric and nitric acid‚ both of which have harmful effects on the environment. Both marble and limestone are extremely vulnerable to the damages done by acid rain due to their components. These materials contain calcite‚ a substance that easily reacts and dissolves with acid. Acid rain is the cause of the destruction of many
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and put it in their own museum for visitors to see. This document has so much importance to the United State of America and it just would not be right for someone else to be showing it off. This is the issue that has risen with the Elgin Marbles. These marbles hold such a large part of Greek history and art but they are being seen by others in the British Museum. The Greeks have tried for decades to get these important items returned but the British Museum just does not want to let them go.
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period‚ as it showed an amount of cream measured (fat) that the cows would produce (L. L. Van Slyke‚ 1906). The chemistry behind the Babcock test is that by using the sulphuric acid it will burn all liquid except for the fat. The sample is then added with deionised water then placed in the centrifuge determining the layer of fat (University Kentucky‚ College of Agriculture‚ 2013). Sulphuric acid is important in this method as when it is added this increases the process of the fat layer appearing
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ical Chemistry 1.which of the following pairs of compound will react? iC3H6+Br2 iiC3H6+Cl2 in sunlight iiiC3H6+H2O in the presence of sulphuric acid ivC3H6+H2O in the presence of concentrated sulphuric acid a.i b.i‚iii c.i‚ii‚iii d.all 2.liqiud y reacts with magnesium metal to produce a gas that burns with a pop sound when a flaming wooden splint is placed near it.liqiud y is most likely a compound that has the formula a.c2h5oh b.hcooh c.h3cooch3 d.c6h14 3.a compound p has the
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GCSE SCIENCE COURSEWORK (CHEMISTRY) PLANNING: Skill Area P Write down the aim of your Investigation. To investigate the effects of change in concentration on the rate of reaction between Sodium Thiosulphate and Hydrochloric Acid. Briefly describe your Preliminary Experiment and include your results. Explain how these results have helped you plan your main experiment (p8b). An increase in concentration will lead to an increase in the rate of reaction because there will be a greater number of
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Chemistry: Acid-Base Titration Purpose: The objective of this experiment were: a) to review the concept of simple acid-base reactions; b) to review the stoichiometric calculations involved in chemical reactions; c) to review the basic lab procedure of a titration and introduce the student to the concept of a primary standard and the process of standardization; d) to review the calculations involving chemical solutions; e) to help the student improve his/her lab technique. Theory: Titration was
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NT 4 . 5 Reactions of acids Aim To investigate and compare some reactions of a strong acid‚ hydrochloric acid‚ and a weak acid‚ ethanoic acid (common name‚ acetic acid) Equipment Dropper bottles containing: • 0.1 M hydrochloric acid‚ HCl • 0.1 M ethanoic acid (acetic acid)‚ CH3COOH • 0.1 M sodium hydroxide‚ NaOH • 1 M hydrochloric acid‚ HCl • 1 M ethanoic acid (acetic acid)‚ CH3COOH • universal indicator solution • limewater (calcium hydroxide‚ Ca(OH)2) Marble chips (calcium carbonate‚ CaCO3)
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Some avoid marble because they hear it’s hard to keep “looking nice” or they think it’s too expensive. So while it may cost more than some other options you have‚ rest assured your marble floor will long outlive you—if you let it. It does take some care‚ but this can be far outweighed by the sheer elegance it offers. When it’s first installed‚ your marble floor will need a protective sealant. Your natural stone supplier can recommend the best product for the particular marble you’ve selected
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