coating a metal object with a thin layer of another metal by means of electrolysis. 2) What is Copper Plating? Copper plating is a coating of copper metal on another material‚ often other metals. Plating is designed to increase durability‚ strength‚ or visual appeal‚ and copper plating specifically is often used to improve heat and electrical conductivity. 3) What are the uses of electro-plating/copper plating? Electroplating is used to give metal objects a better appearance or to protect them
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primary alcohol II. Problems based on secondary alcohol III. Problems based on tertiary alcohol IV. Problems based on glycol and glycerol V. Problems based on phenol VI. Problems based on benzyl alcohol d-Block Elements I. Problems based on copper II. Problems based on chromium III. Problems based on zinc IV. Problems based on silver V. Problems based on gold Carbonyl compounds I. Problems based on acetaldehyde and acetone II. Problems based on benzedehyde III. Problems based
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Centre Number Surname Other Names Candidate Signature Candidate Number For Examiner’s Use Examiner’s Initials Question Mark General Certificate of Secondary Education Higher Tier January 2012 1 2 3 4 5 TOTAL Science B Unit Chemistry C1 CHY1H Chemistry Written Paper Unit Chemistry C1 H Thursday 26 January 2012 You will need no other materials. You may use a calculator. 9.00 am to 9.45 am Time allowed 45 minutes Instructions Use black ink or black
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The Copper A. In the text “the Copper” Glenn Gavin tells about his experience and viewpoints 20 months after he joined the Metropolitan Police. In the text are different subjects discussed. Glenn Gavin talks about his upraise inside the family and at school‚ the role of rules‚ his choice of carrier‚ and attitude toward politics. When Gavin was a kid his parents gave him a “guiding kick up the backside every now and then” (p. 1 l. 2). For example when he “came in late” (p. 1 l.3) or if he “was
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between 100 and 200 mL of copper (II) sulfate solution -Connect clip to each of the nickel strips -Place nickel strips in copper sulfate solution without strips touching -Put one clip on the positive side of the battery and the second to the negative side. Observe -Switch clips to the opposite charged sides of the battery. Observe again -Reverse wiring to original spots Observations Q-what did you observe when you hooked up the nickel strips to the battery? A-the copper from the solution coated
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Printing Final Cutting Dry film Stripping Etching Tin Stripping Q.C. Mechanical Operation * Sheet Cutting :- Measure the size of PCB from film or Artwork. L W Panel Sz. * Board Area PCB Sz. Boarder Area * Laminates or Copper Sheet :1. Glass Epoxy 2. Paper fenolic 3.Teflon 4. Ceramick (CEM) * Glass Epoxy :- Thickness S/S 1.6 35/0 Cu Thickness Insulating Material thickness D/S 0.8-18/18 1.6-18/18
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greasing the nail and painting the nail and electroplating the nail will inhibit rusting. I also predict that adding NaCl to the test tube with water and air will promote rusting of the iron nail. Background information: Rusting is the chemical reaction between a metal and oxygen in the presence of water. In this case‚ it is the corrosion of iron. Corrosion is defined as the loss of metallic properties of a metal due to oxidation and it results in them losing strength and electrical conductivity
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INDUSTRIAL TRAINING AT “HINDUSTAN COPPER LIMITED” (MALANJKHAND COPPER PROJECT) A GOVT. OF INDIA ENTERPRISE‚ MALANJKHAND DISTRICT-BALAGHAT (M.P) SUBMITTED BY: SHASHANK NIMJE HIMANSHU JAIN (SAMRAT ASHOK TECHNOLOGICAL INSTITUTE‚ VIDISHA (M.P) 1|Page CERTIFICATION This is to certify that HIMANSHU JAIN AND SHASHANK NIMJE are the students of 3rd year at SAMRAT ASHOK TECHNOLOGICAL INSTITUTE‚ VIDISHA (M.P) batch 20082012 has undergone industrial training at MALANJKHAND COPPER PROJECT‚ MALANJKHAND. They
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Oxidation-Reduction | | Reactions | Mg in Na2SO4 → | | Zn in MgSO4 → | | Pb in Zn(NO3)2 → | | Pb in FeCl3 → | | Fe in CuSO4 → | | Questions A. Based on your observations make an activity series of the metals used. List them in such a way that the most active metal is on the left and the least active metal is on the right. Remember‚ sodium and copper are metals‚ too. B
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Solder (/ˈsoʊldə/‚[1] /ˈsɒldə/[1] or in USA /ˈsɒdər/[2]) is a fusible metal alloy used to join together metal workpieces and having a melting point below that of the workpiece(s). Soft solder is typically thought of when solder or soldering is mentioned‚ with a typical melting range of 90 to 450 °C (190 to 840 °F).[3] It is commonly used in electronics‚ plumbing‚ and assembly of sheet metal parts. Manual soldering uses a soldering iron or soldering gun.Alloys that melt between 180 and 190 °C (360
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