Lab Report Experiment #3 Chemical Aspects of Life The objective of the Reducing Sugar Test was to test if the substance has a reducing sugar in it by adding Benedict’s solution and heating it‚ there would be a color change if a reducing sugar is present‚ or it will remain blue (no reducing sugar). The objective of the Starch test was to test for starch in substances by using Iodine. The iodine will cause a substance to turn to a dark blue color if it is positive for starch. The objective for
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This experimental procedure uses compounds from spinach leaves that are exposed to chromatography‚ TLC plate to indicate the different pigments within the spinach extract. ‘Column chromatography in chemistry is a method used to purify individual chemical compounds from mixtures of compounds’ (Wikipedia‚ 2011). This method is similar to thin layer chromatography‚ but the compounds in the mixture are collected separately. Green dye is used in this experiment that consists of blue and yellow constituents
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Observation of Chemical Changes Purpose In this experiment‚ the student studied the composition of materials in a setting where the indications of chemical changes were safely observed. The changes observed consisted of bubble formation‚ colors‚ viscosity‚ and precipitate formation. Procedure Using a well plate: use a different well for each chemical combination. Two drops (unless otherwise noted) of each chemical in the combinations (below) should be placed in one well. A dark and light
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1 UNIT 9 CHEMICAL KINETICS 1. (c) mole 1–1 sec–1 The rate law for a reaction A + B →products‚ is rate = k [A]1[B]2. 7. Then‚ which one of the following statements is false ? (a) If [B] is held constant while [A] is doubled‚ the reaction will proceed twice as fast. (b) If [A] is held constant while [B] is reduced to one quarter‚ the rate will be halved (c) If [A] and [B] are both doubled‚ the reaction will proceed 8 times as fast. 2. Fro a first order reaction‚ a straight
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Intangible items in The Things they carried Do you think that all the soldiers just carried physical objects? Most people just think that all they carried are guns and such. But they carried must more than physical objects. They carried intangible items. There were many tangible and intangible items they carry. But the most important items are the intangible ones. There are many intangible items they carry. But some of the most important are love‚ memories‚ and fear. The most important intangible
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Introduction to feedback Strategy in action Purpose At the end of each decision period there is an opportunity to review the Agenda Items for that decision period and the issues that they raise for the WRSX Group. The purpose of this feedback is to enable the participant to answer the following questions: 1. Were you able to identify the key strategic issues raised by the agenda item? 2. Were you able to anticipate the impact of your decision on Non Financial Performance Indicators (NFPIs)? 3. As in the real
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Television has become such an integral part of almost every household in the Western world that is difficult to imagine life without it. However‚ many people claim that it can have negative effects on viewers. In your opinion‚ what are the advantages and disadvantages of watching television? It is well-known fact that television has an essential role in everyday life for the majority of people. It is also true‚ though‚ that watching television for long hours has several drawbacks‚ some of which
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CASE: Promotional Novelties Promotional Novelties provides a wide range of novelty items for its corporate customers. It has just received an order for 20‚000 toy tractor-trailers that will be sold by a regional filling station company as part of a holiday promotion. The order is to be shipped at the beginning of week 8. The tree diagram shows the various components of the trucks. The company can complete final assembly of the tractor-trailers at the rate of 10‚000 a week. The tractor and truck
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Using material from item A and elsewhere‚ assess the view that the growth of religious fundamentalism is a reaction to globalisation As mentioned in item A ‘much has been written about the decline of religious beliefs and the secularisation of modern societies’ this states that the growth of fundamentalism represents a culture which tends to be a clash between the sacred an secular. Fundamentalism refers to ‘black and white’ thinking that opposes modernism or any sort of progressive beliefs about
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ABS 757 physical and chemical characters Matter states: white colloid Shape: granular Smell: no Flash point: 404°C Natural temperature: 466°C explosion limits: 45g/㎡ Minimum fire energy: 3.6MJ Specific gravity: 1.03-1.10 ABS 757 material characters properties Test method Test condition ABS 757 Tensile strength ASTM D638 1/8”‚ 6mm/min 480(6800) Tensile elongation ASTM D638 1/8”‚ 6mm/min 20 Flexural modulus ASTM D790 1/4”‚ 2.8mm/min 820(11660) Flexural modulus ASTM D256 1/4”‚ 2.8mm/min
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