odour‚ bubbles‚ a new solid is seen (called precipitate)‚ change in temperature or light‚ not easily reversed Family: a column (groups) of elements with similar properties * four main groups: Alkali Metals‚ Alkali Earth Metals‚ Halogens and Noble Gases Period: rows on the periodic table Metal: an element that is lustrous‚ malleable‚ ductile and conducts heat and electricity;
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: Let’s now start by looking at the basic requirements for selecting materials that are suitable for a particular application. For example figure 1 shows a connecter joining electric cables. The plastic casing has been partly cut away to show the metal connector. Plastic is used for the outer casing because it is a good electrical insulator and prevents electric shock if a person touches it. It also prevents the conductors touching each other and causing a short circuit. As well as being a good insulator
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Bishop’s University Department of Economics The “Day-of-the-Week” Effect: Analysis of Trends in the Daily Returns of Copper and Aluminum Lucas Zawislak and Jennifer Lee Dr. M. Vigneault Applied Economic Analysis March 15th‚ 2013 Introduction According to the neoclassical school of economics‚ asset markets are assumed to be both efficient and random. These two assumptions are the base from which two neoclassical theories are derived: 1) “The Efficient Market Theory” infers that
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the amount of resistance created in a wire. Another factor is the conductivity of the material we are using. Some metals are just more electrically conductive than others. As long as I use the same type of metal for each wire‚ my experiment will remain fair. Cross Sectional Area The thicker the wire‚ the less resistant it is. This is because there are more electrons in the metal that are free to move as a current. Also‚ there is more space for the electrons to flow‚ so more can fit down. This
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lithosphere. It is separated from the ore found in the lithosphere. Gold’s symbol is Au. Its atomic number is 79 and has an atomic mass of 196.96655 amu. Its melting point is 1064.43°C‚ while its boiling point is 2807.0 °C. It is a transition metal and is yellow or gold in colour. There are also many principles used in the separation of gold. One of these is boiling points in the process of smelting. In Froth floatation‚ the principle is the organic chemicals in the gold which causes it to
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Summary The purpose of this lab is to find the friction factor and Reynolds number for laminar and turbulent flow and also for values in the critical zone. Results were taken recorded and used to calculate the friction factor and Reynolds number. They were then compared with the Moody diagram. Aim This lab could be used in industry when dealing with a pipe line containing any type of liquid to calculate the Reynolds number and friction factor. It would also help in pipe and pump selection
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elements where a material with better or different properties is produced. The range of alloys produced depends on the solubility of the constituents and the proportion of them. The number of possible alloy combinations is almost endless since any metal can be alloyed in pairs or in multiples. Alloys can be classified into two main categories:Interstitial alloy. It is when smaller elements‚ such as boron‚ carbon‚ nitrogen‚ or silicon‚ fill the spaces or interstice of the main metallic structure or
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2/25/13 Chemistry H. Mrs. Halme Objective: Your task is to determine the density of 3 known metals: Zinc‚ Copper‚ and Lead. They are each marked. You must then calculate the density of an unknown metal and determine its identity based on your data from your known samples. Reagents: None Equipment: Lead Copper Zinc Triple Beam Balance Graduated cylinder Unknown metal (Magnesium) Beaker Calculator Procedures Preparation: We observed the given equipment‚ and then placed
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every job we have in the company. Our company is a metal recycling company whose process is buying metals‚ excluding precious metals‚ processing the metals‚ and the final product will be sold to larger recycling companies for a profit. We ensure that the metals are in the cleanest form to sell for the largest amount of profit. This process can include shredding of material‚ crushing of cars‚ removing plastics and trash‚ sorting of different metals‚ and packaging of materials to ship out. The process
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Introduction Curled Metal Inc (CMI) is a company whose strategy evolves selling products that used certain types of metal as a raw material. CMI rapidly grow in the last decade due to Slip-Seal‚ a product that meet the demanding specification of the automaker imposed by US strict environment legislation. In order to diversify offer from auto industry‚ CMI’s management decided to examine a new application for curled metal technology. Situation Analysis Company Business Model and Competitive
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