Question

2. Which of the following reactions would you expect to occur spontaneously in the forward direction? Show your reasoning. a. Ni(s) + Zn$^{2+}$(aq) ? Ni$^{2+}$(aq) + Zn(s) b. Al(s) + 3 Ag$^{+}${aq) ? Al$^{3+}$(aq) + 3 Ag(s) Reduction Half-Reaction $E_{red}$, V Ag$^{+}${aq) + 1e$^{-}$ ? Ag(s) +0.80 Cu$^{2+}$(aq) + 2e$^{-}$ ? Cu(s) +0.34 Ni$^{2+}$(aq) + 2e$^{-}$ ? Ni(s) -0.23 Zn$^{2+}$(aq) + 2e$^{-}$ ? Zn(s) -0.76 Mn$^{2+}$(aq) + 2e$^{-}$ ? Mn(s) -1.18 Al$^{3+}$(aq) + 3e$^{-}$ ? Al(s) -1.66 Mg$^{2+}$(aq) + 2e$^{-}$ ? Mg(s) -2.37

          2. Which of the following reactions would you expect to occur spontaneously in the forward
direction? Show your reasoning.
a. Ni(s) + Zn$^{2+}$(aq) ? Ni$^{2+}$(aq) + Zn(s)
b. Al(s) + 3 Ag$^{+}${aq) ? Al$^{3+}$(aq) + 3 Ag(s)
Reduction Half-Reaction
$E_{red}$, V
Ag$^{+}${aq) + 1e$^{-}$ ? Ag(s)
+0.80
Cu$^{2+}$(aq) + 2e$^{-}$ ? Cu(s)
+0.34
Ni$^{2+}$(aq) + 2e$^{-}$ ? Ni(s)
-0.23
Zn$^{2+}$(aq) + 2e$^{-}$ ? Zn(s)
-0.76
Mn$^{2+}$(aq) + 2e$^{-}$ ? Mn(s)
-1.18
Al$^{3+}$(aq) + 3e$^{-}$ ? Al(s)
-1.66
Mg$^{2+}$(aq) + 2e$^{-}$ ? Mg(s)
-2.37

2. Which of the following reactions would you expect to occur spontaneously in the forward
direction? Show your reasoning.
a. Ni(s) + Zn^2+(aq) ? Ni^2+(aq) + Zn(s)
b. Al(s) + 3 Ag^+aq) ? Al^3+(aq) + 3 Ag(s)
Reduction Half-Reaction
Ered, V
Ag^+aq) + 1e^- ? Ag(s)
+0.80
Cu^2+(aq) + 2e^- ? Cu(s)
+0.34
Ni^2+(aq) + 2e^- ? Ni(s)
-0.23
Zn^2+(aq) + 2e^- ? Zn(s)
-0.76
Mn^2+(aq) + 2e^- ? Mn(s)
-1.18
Al^3+(aq) + 3e^- ? Al(s)
-1.66
Mg^2+(aq) + 2e^- ? Mg(s)
-2.37

Added by Amy C.

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