The Effect of pH Level of a Liquid on the Rate of Corrosion of Copper wire In this experiment‚ I will be testing the corrosion rate of copper wire after leaving them in different liquids with different pH levels. By doing so I will be able to determine which pH level corrodes copper the fastest. I will conduct this experiment by pouring 250mL of different liquids with different pH levels in cups‚ followed by an iron strip placed into the cup. A stopwatch will be timing how long it takes the iron
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Record your observations for each sample. Part 5: Indirect Staining: Examine the stained specimens and record your results. Questions: A. What are the advantages of using bleach as a disinfectant? The disadvantages? The advantages of using 70% alcohol? The disadvantages? a. An advantage of bleach disinfectant is that is easy and inexpensive‚ and a disadvantage is that if touches clothing while cleaning if will fade. b. An advantage of alcohol is that it is good in hospital settings
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At times she would lock him up in the restroom and slide a towel under the door in doing this she makes him clean the restroom with bleach and other household cleaners. Another way she would torture David was she would put him in the basement and made him starve and eat out of a dog bowl. David also had to sleep on a hard cot in the basement with no covers and his clothes had holes
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PRS1023/502/3/2013 Tutorial Letter 502/3/2013 Health in Early Childhood Education: A PRS1023 Department of Teacher Education Semester 1 and 2 This tutorial letter contains important information about your module. Bar code PRS1023/502 TABLE OF CONTENTS 1 COURSE OVERVIEW 2 STUDY UNIT 4: NUTRITION 3 STUDY UNIT 5: COMMON HEALTH PROBLEMS 4 STUDY UNIT 6: PUTTING IT ALL TOGETHER - THE HEALTH POLICY 5 CONCLUSION 6 LIST OF SOURCES LAYOUT OF
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Gender Differences in Preference for Product Design By Ellie Taylor 2008-2009 A PSYC3170 Major Project Supervised by Dr Steve Westerman and Dr Ed Sutherland A dissertation submitted in partial fulfilment of the requirements of the degree of BSc (International) Psychology And in agreement with the University of Leeds’ Declaration of Academic Integrity [pic] Institute of Psychological Sciences University of Leeds CONTENTS Title Page……………………………………………………………………………………………………………………………………………………
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1.Brunei The national flag of Brunei has the crest of Brunei in the centre‚ on a yellow field. The field is cut by black and white diagonal stripes‚ although they are officially called parallelograms. The yellow field represents the Sultan of Brunei. (In Southeast Asia‚ yellow is traditionally the colour of royalty‚ and the royal standards ofMalaysia and Thailand‚ along with the presidential flag of Indonesia‚ also use a yellow field.) The crest consists of a crescent (symbolizing Islam) joined
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Synthesis of Chloroform -------------------------------------------------------------------------------- With Calcium Hypochlorite and Acetone When chlorine is passed into boiling alcohol‚ both chlorination of the methyl group and oxidation of the primary alcohol group to an aldehyde occur‚ giving trichloro-acetaldehyde or chloral: When chloral is treated with caustic alkali‚ fission of the C-C linkage occurs‚ giving chloroform and a formate. Acetaldehyde and also many ketones‚ such as acetone
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of the many uses for boron is cleaning supplies and laundry detergent. Boron is found in borax‚ which is in those supplies. The borax and other borates clean and bleach by converting some water molecules into hydrogen peroxide and since the pH of borax is 9.5 it produces a basic solution in water‚ which increases the effectiveness of bleach and other cleaners. Borates bond with other particles to keep ingredients dispersed evenly in a mixture‚ which maximizes the surface area of active particles to
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Most individuals think they have the worst life but the truth is we all are going through something Some people might be going through harder things but we are all going through something. Throughout S.E Hinton’s The Outsiders Bad decisions lead to regret later on. In The Outsiders‚ There are two gangs The Socs‚ and The Greasers‚ neither groups get along. The Socs are rich‚ and they drive nice cars‚ the greasers are opposite they are poor‚ and drive beat up old cars. One night two Greasers Johnny
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each halide ion. Infer the identity of unknown solutions. Materials: * 0.1 M AgNo3 * 0.1 M NaCl * 0.1 M NaF * 0.2 M KBr * 0.2M Kl * 0.2 M Na2S2)3 * 0.5 M Ca(NO3)2 * 3% Starch solution * 5% NaOCl ( commercial bleach) * 12 test tubes‚ 18 mm X 150 mm test tube rack * Pipette Procedure: 1. Place the 4 solutions in separate test tubes with about 2.5 mL in each. (NaF‚ NaCl‚ KBr‚ KI) Use a dropper or you can use a pipette. Add 1 Ml ( 20 drops) of 0.5
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