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NCSU CH 101 - Practice Questions

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A copper strip is placed in silver acetate solutionQ32-1: Write the Net Reaction or None for the following:1A. Ag1+(aq)+ Cu(s)à Ag(s)+ Cu2+(aq)B. Cu2+(aq)+ 2Ag(s)à Cu(s)+ 2Ag1+(aq)C. 2Ag1+(aq)+ Cu2+(aq)à 2Ag(s)+ Cu(s)D. 2Ag1+(aq)+ Cu(s)à 2Ag(s)+ Cu2+(aq)E. Nonehttps://www.youtube.com/watch?v=zUFJHfTgbLQAg1+(aq) + e-+0.80 VCu2+(aq) + 2e-Cu(s)+0.34 VAg(s)Aluminium foil is added to a solution of CuCl2Q32-2: Write the Net Reaction or None for the following:2A. Cl2 (g)+ Cu(s)à 2Cl-(aq)+ 3Cu2+(aq)B. 3Cl2 (g)+ 2Al(s)à 6Cl-(aq)+ 2Al3+(aq)C. 3Cu2+(aq)+ 2Al(s)à 3Cu(s)+ 2Al3+(aq)D. 2Cu2+(aq)+ 3Al3+(aq)à 2Cu(s)+ 2Al(s)E. Nonehttps://www.youtube.com/watch?v=lcCCV2eo_n4Cu2+ (aq) + 2e-Cu (s)+0.34 V2H2O (l) + 2e-H2 (g)+2OH-(aq) -0.41 VAl3+(aq) + 3e-Al(s)-1.66 VCl2 (g) + 2e-2Cl-(aq)+1.36 VA lead bar is placed in bromINE and waterQ32-3: Write the Net Reaction or None for the following:3A. Pb2+(aq)+ 2Br1-(aq)à PbBr2(s)B. 2Br1-(aq)+ Pb(s)à Br2 (l)+ Pb2+(aq)C. Br2 (l)+ Pb(s) à 2Br1-(aq)+ Pb2+(aq)D. 2Br1-(aq)+ Pb2+(aq) à Br2 (l)+ Pb(s)E. NonePb2+ (aq) + 2e-Pb(s)-0.13 V2H2O (l) + 2e-H2 (g)+2OH-(aq) -0.41 VBr2 (l) + 2e-2Br-(aq)+1.09 VO2 (g) + 4H++ 4e-2H2O (l)+0.82 VMetallic copper is placed in a solution of KIQ32-4: Write the Net Reaction or None for the following:4A. 2I1-(aq)+ 2K(s)à I2(s)+ 2K1+(aq)B. 2I1-(aq)+ Cu(s)à Cu2+(aq)+ I2(s)C. I2(s) + 2K(s)à 2I1-(aq)+ 2K1+(aq)D. 2K1+(aq)+ Cu(s)à Cu2+(aq)+ 2K(s)E. NoneK+ (aq) + e-K (s)-2.92 VI2 (s) + 2e-2I-(aq)+0.54 VCu2+ (aq) + 2e-Cu (s)+0.34 VChlorine gas is bubbled into a solution containing Fe2+ionsQ32-5: Write the Net Reaction or None for the following:5A. Cl2(g)+ 2Fe2+(aq)à 2Cl1-(aq)+ 2Fe3+(aq)B. Cl2(g)+ Fe(s)à 2Cl1-(aq)+ Fe2+(aq)C. 2Cl1-(aq) + Fe(s)à Cl2(g) + Fe2+(aq)D. 2Cl1-(aq) + Fe2+(aq)à Cl2(g)+ Fe(s)E. NoneFe2+(aq) + 2e-Fe (s)-0.44 VCl2 (g) + 2e-2Cl-(aq)+1.36 VFe3+ (aq) + e-Fe2+(aq)+0.77 VFeSO4is added to an acidic solution of K2Cr2O7Q32-6: Write the Net Reaction or None for the following:6A. Cr2O72-(aq)+6Fe2+(aq)+14H+(aq)à2Cr3+(aq)+6Fe3+(aq)+7H2O(l)B. Fe2+(aq)+ 2K(s)à Fe(s)+ 2K+(aq)C. Cr2O72-(aq)+3Fe(s) +14H+(aq)à2Cr3+(aq)+3Fe2+(aq)+7H2O(l)D. NoneK (s)https://www.youtube.com/watch?v=6niqK3UcHXMK+ (aq) + e--2.92 VFe2+(aq) + 2e-Fe (s)-0.44 VCr2O72-(aq)+14H+(aq)+6e-2Cr3+(aq)+7 H2O(l)+1.36 VFe3+ (aq) + e-Fe2+(aq)+0.77 V2H+(aq) + 2e-H2 (g)0.00 VQ32-7: Which redox reaction below is found in a button battery?7A. 2MnO2+ Zn + H2O à Mn2O3+ Zn(OH)2 B. Ag2O + Zn + H2O à 2Ag + Zn(OH)2C. PbO2 + Pb + 4H1++2SO42-à2PbSO4+2H2OD. 4Fe + 3O2à 2Fe2O3Q32-8: Pick the metals that Sn could be galvanized with8A. Cu & PbB. Mg & AlC. Cu & MgD. Al & PbA. galvanicB. electrolyticQ32-9: Which type of cell is appropriate for the redox reaction below?2Na1++ 2Cl1-à 2Na + Cl29Q32-10: Which type of cell is appropriate for the redox reaction below?Sn2++ 2Na à Sn + 2Na1+10A. galvanicB. electrolyticKEY1. D2. C3. C4. E5. A6. A7. B8. B9.


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