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A 150g piece of copper is heated to 100oC. It

A 150g piece of copper is heated to 100oC. It is then held in the open air for 2 minutes and 31 seconds, and then dropped into a
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2. asked by Mike
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A piece of copper of mass 0.55 kg is heated from 57oC to 100oC .What is the increase in the internal energy of the copper
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2. asked by Eunny
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A piece of copper with mass 2.5kg is heated from 30degree celcius to 80degree celcius. 50000 Joule of thermal energy is
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A 0.190 kg piece of copper is heated and fashioned into a bracelet. The amount of energy transferred as heat to the copper is6.6
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2. asked by arriell
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A 0.190 kg piece of copper is heated and fashioned into a bracelet. The amount of energy transferred as heat to the copper is
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2. asked by abbigail
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A 0.190 kg piece of copper is heated and fashioned into a bracelet. The amount of energy transferred by heat to the copper is
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A piece of copper weighing 250 is heated to 100 and then quickly transferred to a copper calorimeter of mass 15 containing 80 of
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2. asked by Favour
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Three metals, iron, copper, and gold, have heat capacities of 0.450 J/goC, 0.385 J/goC and 0.129 J/goC, respectively. A 10g
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2. asked by kay
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1)Name the ores of copper and show their formula2)Why is copper crushed into fine powder before roasting 3)Write the formula of
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2. asked by Mk
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4. Identify each of the following observationsas evidence of either a physical change or a chemical change. (a) A piece of
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