list these metals in order of DECREASING tendency to reduce Cu2+?
599313
Refer to the electrohemical series (see source).  The answer depends on whether the conditions are such that iron is oxidized to Fe2+ or Fe3+.  In the case of iron metal being oxidized to Fe2+, the correct order is:\n\nMg, Zn, Fe, Sn, Pb
889558
copper metal is listed as "very unreactive".  This means it is relatively stable as a metal, and relatively unstable as an ion.\n\nMagnesium metal "reacts with acids" so it is more stable in ionic form than copper,and less stable as pure metal.\n\nThe goal of nature is to go from an net unstable form to a more stable form.  (This is called reducing the free energy, or delta G of a system).\n\nIn order to use the activity series:\n\nany metal below a given metal is less stable in ionic form and more stable as a pure metal.\n\nThis means that a pure metal can reduce the ions of any metals below it.\n\nFor example, aluminum metal can reduce manganese ions, zinc ions, and so on because they are below it.\n\nAluminum metal cannot reduce magnesium ions, calcium ions, and other metals above it.\n\nI hope you can get it now.  Ok I am sure what I typed is correct now.  Good luck!\n\nhttp://en.wikipedia.org/wiki/Activity_series
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Try the following website if this may be useful :\n\nwww.conexindia.com/copper_casting_alloys_datachart_CDA/copper_casting_alloys
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Cu2S + 12HNO3 -> Cu(NO3)2 + CuSO4 + 10NO2 + 6H2O\n\nThere you go.
46078
copper is one of many "transiton metals" which means it is one of the elements in the middle-lower part of the periodic table - groups 3 to 12, also called the d-block because they have electrons that occupy d orbitals.  other transition metals include zinc, magnesium, mercury, iron, gold, silver - altogether there are 40 of them.\n\ncopper is shiny, red-orangish in color, and is a very good conductor of both heat and electricity.
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Zn(NO2)2; Co(HSO3)3; HgF; Al2(CO3)3; Cs2C2O4; Ba(ClO)2; SnBr2; Mg(HSO3)2.
528106
since reduction occurs at the cathode, it would be the Ag+, but it is relative to what your anode is.
887687
Below is a link to a practical for finding the % copper in pennies.  The same method will work using brass in place of pennies.\n\nhttp://www.creative-chemistry.org.uk/alevel/module5/documents/N-ch5-17.pdf
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* Name: copper\n    * Symbol: Cu\n    * Atomic number: 29\n    * Atomic weight: 63.546 (3) r\n    * CAS Registry ID: 7440-50-8\n      \n      Standard state: solid at 298 K\n      Colour: copper, metallic\n      Classification: Metallic\n\n    * Group number: 11\n    * Group name: Coinage metal\n    * Period number: 4\n    * Block: d-block
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You are looking at a displacement reaction, in which the more reactive metal (Cu) is displacing the less reactive metal (Ag) from its salt solution (AgNO3).\nCu (s) + 2AgNO3 (aq) --> 2Ag (s) + Cu(NO3)2 (aq)\n\nHope this helps. :)
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copper, silver, aluminum, lead, magnesium, platinum and tungsten
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Here's are a few:\nhttp://www.science-house.org/learn/CountertopChem/exp25.html\nhttp://www.chymist.com/copper%20silver%20gold%20expl.pdf\nhttp://chemlearn.chem.indiana.edu/demos/15-7%20TheGold1.htm
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Cu(s) + 4HNO3 (aq)--> Cu(NO3)2(aq) + 2H2O(l) +2NO2(g)
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1) MgCO3\n2) AlF3\n3) BF3\n4) NH4F\n5) SnO2\n6) HCL\n7) Ca(OH)2\n8) Na2S\n9) K2SO3\n\n1) do yo mean PbCl2? then Lead (II) Chloride\n2) Lithium Bromide\n3) Potassium Sulfate\n4) Megnesium Hydroxide\n5) don't know\n6) Hydrogen Nitrate\n7) Barium Phosphate\n8) Carbon Monoxide\n9) Copper Brimide\n10) Ammonium Chloride\n11) Tin (II) Hydroxide\n12) Calcium Nitrogide\n13) Strontium Oxide\n14) Tetraiodide prefix for 9 and oxide\n\nFe^+2\nNi^2\nAg^+1
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Gold, Lead, Copper, Jet, Diamond, Radium, Sapphire, Silver and Steel.
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Metals are reductants. that is they cause reduction in a reaction and are themselves oxidised. This means they must GIVE UP electrons. If you look at the periodic table, as you go down a group (say 1st gorup), atoms have more and more shells ( the outer which contains only 1 electron). As you know, the more shells there are, the lesser tehy will be bound to the nucleus (as they experience weak core charge). This means at the bottom of the 1st group, atoms will almost willingly get rid of its valence electron. So that's why as you go down a group, they are more metallic.\n\nAs you go from the left to the right of the PT, there are more electrons in the outer shell. THis means they more and more act as an oxidant (causing oxidation to others, but in turn gets reduced). Thus, they are less metallic
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Copper is more reactive than silver, hence displacement of silver occurs.\nCu (s) + 2AgNO3 (aq) --> 2Ag (s) + Cu(NO3)2 (aq)\n\nSum of the coefficients? 6...\n\nHope this helps :)