the spaces provided. 1 Aluminium has many uses. 1 (a) An aluminium atom has 13 electrons. 1 (a) (i) Draw the electronic structure of an aluminium atom. Nucleus (1 mark) 1 (a) (ii) Name the two sub-atomic particles in the nucleus of an aluminium atom. .................................................................. and .................................................................. (1 mark) 1 (a) (iii) Why is there no overall electrical charge on an aluminium atom?
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wheel consists of hard abrasive grains called grits‚ which perform the cutting or material removal‚ held in the weak bonding matrix. A grinding wheel commonly identified by the type of the abrasive material used. The conventional wheels include aluminium oxide and silicon carbide wheels while diamond and cBN (cubic boron nitride) wheels fall in the category of superabrasive wheel. 28.1 Specification of grinding wheel A grinding wheel requires two types of specification (a) Geometrical specification
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model. What are the key determinants of Vershire’s aluminium can profitability? Explain. (20%) * Barriers to entry I would suggest that the barriers to entry are relatively high in this industry. Although there would not be huge capital requirement to enter into the aluminum cans producing business and customer-switching costs are considered to be low‚ the fact is that the competition in this industry is very intense. There are already many aluminium cans manufacturers exist in the market‚ with some
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dioxide and water. In this experiment you will determine the molar heat of combustion of methanol‚ ethanol‚ 1propanol‚ 1butanol; and 1pentanol. Experimental Procedure Equipment * Electronic Balance ±0.01g * Measuring Cylinders ±1 mL * Aluminium Can * Cotton Wool * Theromometer ±0.5C * Retort Stand and Clamp * Spirit Burner containing alcohol sample * Alcohols (methanol‚ ethanol‚ 1-propanol‚ 1-butanol‚ 1-pentanol) Safety The alcohols are highly flammable. Always place
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drinks‚ such as soft drinks beers‚ aluminium is often used. Tin plate is a solid‚ heavy steel covered with tin to protect it against rust. It is used to package canned foods. It can be separated by magnets should be recycled in all cases. Aluminium is attractive‚ light strong at the same time‚ but requires a lot of raw materials energy to make it. For this reason it must be recycled. The majority of cans of soft drinks‚ lids‚ aluminium foil‚ etc. are made aluminium. Brick carton A light‚ strong
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Industrial Training REPORT AT KITEX LTD‚ KIZHAKKAMBALAM 1ST REVIEW ON 9/1/2013 Submitted to K.karthick sir Submitted by TINTO THOTTUVELIL 111BM068 II BBA. B INTRODUCTION The archaeological surveys and studies have found that the people of Harappan civilization knew weaving and the spinning of cotton four thousand years ago. Reference to weaving and spinning materials is found in the Vedic Literature also.--78.101.204.61 (talk) 12:40‚ 28 November 2012 (UTC) There was textile
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dibromide 11078-32-3 Ag3Br3 silver tribromide 11078-33-4 Ag3Cl3 silver(III) trichloride 12444-96-1 Ag3I3 silver(III) triiodide 37375-12-5 Ag3PO4 silver phosphate 7784-09-0 AlBO aluminium boron oxide 12041-48-4 AlBO2 aluminium borate 61279-70-7 AlBr aluminium monobromide 22359-97-3 AlBr3 aluminium tribromide 7727-15-3
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from bending as easily as other bodies built with different materials. Chevy’s high-strength steel truck body and frame is thirty times as strong as Ford’s aluminium body and frame. Ford on the other hand uses aluminium in their bed. Although Ford also uses steel in their frame the main component that they use in their truck body is aluminium due to its lightweight. All in all Chevy wins the durability factor. Another point that someone looks at when buying a truck from Chevy or Ford is the price
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IGSCE Chemistry Notes Oxides Oxides are used to determine whether an element is a metal or a non-metal. Most non-metals are classed as acidic oxides. While most metals are classed as basicoxides. Acidic Oxides * Reacts with water to form acids * Neutralises alkaline solution to form salt + water Basic Oxides * Neutralises acidic solutions to form salt + water Amphoeteric Oxides * These are non-metals which display both acidic and basic properties Alkaline Oxides * Reacts
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calculate the average for each of the pipes 10. Pack up the equipment when finished Results – Object Time Average Plastic 0.34 0.36 0.42 0.37 Aluminium 3.75 3.61 3.62 3.66 Aluminium w/ groove 2.12 2.26 2.22 2.20 Analysis – 1. What type of metal tube did we use? The metal we used in the practical was a solid and hollow pipe of aluminium. 2. Why couldn’t we use iron for the tube? We couldn’t use iron for the pipe as this would have caused the Rare Earth metal to magnetise onto the
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