Answer Happy

Standard reduction half-cell potentials at 25°C Half-reaction Au (aq) +3e-Au(s) Ag+ (aq) +e-Ag(s) Fe³+ (aq) +3e-Fe²+ (aq) Cut (aq) +e→Cu(s) Cu²+ (aq) +2e →Cu(s) 2H+ (aq) +2e+H₂(g) Fe³+ (aq) +3e-Fe(s) Pb2+ (aq) +2e →Pb(s) Ni²+ (aq) + 2e →Ni(s) Co2+ (aq) +2e-Co(s) Cd2+ (aq) +2e-Cd(s) Fe2+ (aq) +2e →Fe(s) Part A AG Submit Part B no yes Use tabulated electrode potentials to calculate AG for the reaction. 2Na(s) + 2H₂O(1)→H₂(g) + 2OH(aq) + 2Na+ (aq) Express your answer to three significant figures and include the appropriate units. HA Is the reaction spontaneous? Submit Value Request Answer E° (V) 1.50 Request Answer 0.80 0.77 0.52 0.34 0.00 -0.036 -0.13 -0.23 -0.28 -0.40 -0.45 Half-reaction Cr³+ (aq) +e→Cr²+ (aq) Cr³+ (aq) + 3e-Cr(s) Zn²+ (aq) +2e →Zn(s) 2H₂O(1)+2e-2H₂(g) + 2OH(aq) Mn2+ (aq) +2e →Mn(s) Al³+ (aq) + 3e-Al(s) Mg2+ (aq) + 2e →Mg(s) Na (aq) +e-Na(s) Units Ca2+ (aq) +2e →Ca(s) Ba2+ (aq) +2e →Ba(s) K+ (aq) + e-K(s) Li (aq) + e-Li(s) E" (V) -0.50 -0.73 -0.76 -0.83 -1.18 -1.66 -2.37 -2.71 -2.76 -2.90 -2.92 -3.04