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for assigning Oxidation States ) idation numbers of the atoms in a neutral molecule must a I→+1 ; Group II – +2 ; Group III → +3 Le - -1 (always) ens → -1 (except in compounds with O and other halogens gen – +1 (except in metal hydrides, e.g. LiH, Rule 2 and E a--2 (except in compounds with F, Rule 3)

for assigning Oxidation States ) idation numbers of the atoms in a neutral molecule must a I→+1 ; Group II – +2 ; Group III → +3 Le - -1 (always) ens → -1 (except in compounds with O and other halogens gen – +1 (except in metal hydrides, e.g. LiH, Rule 2 and E a--2 (except in compounds with F, Rule 3)

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter3: Chemical Reactions
Section: Chapter Questions
Problem 113QRT
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Using the redox reaction given below, determine which element is oxidized and which element is reduced. 2 Al+ 6 HC1 – 3 H2 + 2 A1C13 (The rules for assigning Oxidation States ) 1) The oxidation numbers of the atoms in a neutral molecule must add up to zero. 2) Group I - +1 ; Group II → +2; Group III – +3 3) Fluorine -1 (always) Halogens – -1 (except in compounds with O and other halogens) 4) Hydrogen - +1 (except in metal hydrides, e.g. LiH, Rule 2 and H has -1) 5) Oxygen- --2 (except in compounds with F, Rule 3)
Transcribed Image Text:Using the redox reaction given below, determine which element is oxidized and which element is reduced. 2 Al+ 6 HC1 – 3 H2 + 2 A1C13 (The rules for assigning Oxidation States ) 1) The oxidation numbers of the atoms in a neutral molecule must add up to zero. 2) Group I - +1 ; Group II → +2; Group III – +3 3) Fluorine -1 (always) Halogens – -1 (except in compounds with O and other halogens) 4) Hydrogen - +1 (except in metal hydrides, e.g. LiH, Rule 2 and H has -1) 5) Oxygen- --2 (except in compounds with F, Rule 3)
VIIIA 1 2 H Не Hydragen 1.0079 Helum IIA IIIA IVA VA VIA VIIA 40006 3 4 6 7 8 9 10 Li Be в N F Ne Barylium Boran Carbon Onygen 15.900 Lihum Nitrogen 14.007 Fuorne Neon 6.941 2.0122 10.11 12.011 20. 180 11 12 13 14 15 16 17 18 Na Mg AI Si Sicon Phosphorun CI S Ar Magnesiun 24.306 Sodum Auminum Sutur Chorine Argen 30 974 36 453 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Yanadum Chronium Margarm Germanium Potasalum Cakum Scandum Tarium Iron Cobat Nidal Gopper Zire Gallum Arsenic Selenium Dromine Krypion 83.790 40.070 44 R56 47.867 50.42 51.896 54.338 55 845 58.833 58.E83 63.546 65.400 68.723 72.64 74.822 78.96 78.904 37 38 39 40 41 42 43 44 45 46 47 49 50 51 52 53 54 Rb Sr Zr Nb Mo Ru Rh Pd Ag Cd Sn Sb Te Xe Aubitum Niobum Muytern Techretum Rutham hodum Stranium Yttrum Zirconium Palatum Shar Cadmium Indium Tin Antimony Tallurm lodine Xonon 5 468 8762 91.224 95. N 10107 10291 100 42 10787 11241 114.82 11871 121.76 127.60 126.90 131.29 55 56 57 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 Cs Ва La Lanthanun Hatum Os Hg TI Bi Po At Hf Ta Re Pt Au Pb Rn Cesium 13291 Barium Tantalum Demium Tungsten 18384 Ahenium Iridium Platrum Gold Vercury 200 50 Thalium Lead Bismuh 208.98 Polonium Astatine Radan 137.33 1391 17840 180 0 18621 192 22 185 08 204.38 2072 (208) 1210 (222) 87 88 89 104 105 106 107 108 109 110 111 112 114 Fr Ra Ac Rf Db Sg Bh Hs Mt Uun Uuu Uub Uuq Radum Actinium Partetw Dubnium Senborgium Bohrium 1227) Frandum Hassum Metnerium (261) (264) 1277) 12011 A. Al is oxidized and H is reduced Cl is oxidized and H is reduced В. Cl is oxidized and Al is reduced H is oxidized and Al is reduced Al is oxidized and Cl is reduced
Transcribed Image Text:VIIIA 1 2 H Не Hydragen 1.0079 Helum IIA IIIA IVA VA VIA VIIA 40006 3 4 6 7 8 9 10 Li Be в N F Ne Barylium Boran Carbon Onygen 15.900 Lihum Nitrogen 14.007 Fuorne Neon 6.941 2.0122 10.11 12.011 20. 180 11 12 13 14 15 16 17 18 Na Mg AI Si Sicon Phosphorun CI S Ar Magnesiun 24.306 Sodum Auminum Sutur Chorine Argen 30 974 36 453 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Yanadum Chronium Margarm Germanium Potasalum Cakum Scandum Tarium Iron Cobat Nidal Gopper Zire Gallum Arsenic Selenium Dromine Krypion 83.790 40.070 44 R56 47.867 50.42 51.896 54.338 55 845 58.833 58.E83 63.546 65.400 68.723 72.64 74.822 78.96 78.904 37 38 39 40 41 42 43 44 45 46 47 49 50 51 52 53 54 Rb Sr Zr Nb Mo Ru Rh Pd Ag Cd Sn Sb Te Xe Aubitum Niobum Muytern Techretum Rutham hodum Stranium Yttrum Zirconium Palatum Shar Cadmium Indium Tin Antimony Tallurm lodine Xonon 5 468 8762 91.224 95. N 10107 10291 100 42 10787 11241 114.82 11871 121.76 127.60 126.90 131.29 55 56 57 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 Cs Ва La Lanthanun Hatum Os Hg TI Bi Po At Hf Ta Re Pt Au Pb Rn Cesium 13291 Barium Tantalum Demium Tungsten 18384 Ahenium Iridium Platrum Gold Vercury 200 50 Thalium Lead Bismuh 208.98 Polonium Astatine Radan 137.33 1391 17840 180 0 18621 192 22 185 08 204.38 2072 (208) 1210 (222) 87 88 89 104 105 106 107 108 109 110 111 112 114 Fr Ra Ac Rf Db Sg Bh Hs Mt Uun Uuu Uub Uuq Radum Actinium Partetw Dubnium Senborgium Bohrium 1227) Frandum Hassum Metnerium (261) (264) 1277) 12011 A. Al is oxidized and H is reduced Cl is oxidized and H is reduced В. Cl is oxidized and Al is reduced H is oxidized and Al is reduced Al is oxidized and Cl is reduced
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