DRAWING AND ITS PROCESSES Drawing is a metalworking process which uses tensile forces to stretch metal. It is broken up into two types: sheet metal drawing and wire‚ bar‚ and tube drawing. The specific definition for sheet metal drawing is that it involves plastic deformation over a curved axis. For wire‚ bar‚ and tube drawing the starting stock is drawn through a die to reduce its diameter and increase its length. Drawing is usually done at room temperature‚ thus classified a cold working process
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Calcium carbonate in an egg shell Aim: is to find and work out the percentage of calcium carbonate by mass in eggshells by using acid base “back titration” Introduction: Calcium Carbonate‚ CaCO₃‚ is a compound which is polymorphic and therefore means that it can be found in a variety of different objects or organisms. For example: Rocks (limestone‚calcite)‚ sea snail shells‚ Eggshells‚ pearls and many more. This investigation will focus on finding out the percentage mass of calcium carbonate in a
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The transition metals are placed in the centre of the periodic table‚ between groups 2 and 3. They are generally hard and dense‚ and less reactive than the alkali metals. Iron‚ copper‚ silver and gold are important transition metals. The transition metals: overview The elements in the centre of the periodic table‚ between groups 2 and 3‚ are called the transition metals. Most of the commonly used metals are there‚ including iron‚ copper‚ silver and gold The transition metals Common properties
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Purpose: The purpose of this lab was to analyze the trends of the atomic radius (AR) and the first ionization energy (IE) for the first 36 elements of the periodic table. Procedure: A piece of graph paper was given out by the teacher. A periodic table that has the atomic number‚ atomic radius (AR)‚ and first ionization energy (IE) was given out by the teacher. A sheet of paper was taken out to record the elements‚ atomic number‚ atomic radius (AR)‚ and the first ionization energy (IE). To record
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Qualitative Analysis of Cations Short Overview The most common cations have been placed into five groups based upon solubility in aqueous solutions when different reagents are added. The reactions which occur are useful in identifying the presence of these cations in unknown samples. The process of identifying the cations is called qualitative analysis. The purpose of this experiment is to identify which cations are present in unknown solutions. A data sheet was not prepared for this experiment
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After reading Up Home‚ I believe it better resonates with the narrative of Canadian identity that was presented in The Loyal Refugees. Specifically‚ Up Home relates to the experiences of the Black Loyalists who fled to Nova Scotia in 1783. In The Loyal Refugees‚ it notes that some of the black Loyalists did not receive the promises that they hoped they would get when coming to North America (78). They had expectations of a better life but those were not delivered. This is mentioned in Up Home‚ as Grant
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Exploring the reasons of why we gain weight and how to lose it‚ the movie Fed Up tells us a secret about the American food industry. More people get sick from eating unhealthy things than we ever imagined. Twelve year olds are slowly dying from eating habits more often seen at an older age. Fed Up shows us how the American food industry cover up faults in the food industry. Between balancing agriculture and a healthy diet‚ we are more often than not eating things deadly to our body. When society
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I. BACKGROUND CMI has developed a new technology using curled metal to create pile driving pads. Compared to existing products on the market‚ these pad offer several benefits: • Faster pile driving saves contractors rental fees‚ labor expense ‚ and spreads overhead over more feet driven in a given period of time • Longer life of pads save contractors additional cost in reducing changeover time • Heat resistance further reduces changeover time‚ saving additional expenses • Safety – CMI pads
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Brad Trent Biology 301L 22 April 2014 Drosophila melanogaster Lab Report Drosophila melanogaster Population Genetics Introduction Population genetics is a very important topic that has to deal with the structure of populations and how different factors and phenomena cause change in the populations genetic
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Univeristy of the Free State | Analysis of paint used on toy cars | Experiment 1 | | Adele van As‚ 2007113232 | 4 August 2012 | | Analysis of paints used on toy cars by means of ICP Adele van As‚ 2007113232 University of the Free State‚ 4 August 2012 ABSTRACT The aim of this study was firstly to determine if any heavy metals were present in the paint used on toy cars‚ and secondly to determine what other elements‚ and in which quantities‚ were present. Two different digestion methods
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