1.Write a balanced chemical equation for the overall reaction represented below.
Al / Al3+ // Zn / Zn2+
a. 3Zn2+(aq) + 2Al3+(aq) --> 2Al(s) + 3Zn(s)
b. 3Zn2+(aq) + 2Al(s) --> 2Al3+(aq) + 3Zn(s)
c. 3Zn(s) + 2Al(s) --> 2Al+(aq) + 3Zn2+(aq)
d. Zn(s) + 2Al+(aq) --> 2Al(s) + Zn2+(aq)
2.The more __ (Ered) is for a species, the stronger the oxidizing strength of the species.
a. positive
b. dilute
c. negative
d. voltaic
3.The following reaction occurs spontaneously.
Cu2+(aq) + Zn(s) --> Cu(s) + Zn2+(aq)
Write the balanced reduction half-reaction.
a. Zn2+(aq) + 2e- --> Zn(s)
b. Zn(s) + 2e- --> Zn2+(aq)
c. Zn(s) --> Zn2+(aq) + 2e-
d. Cu2+(aq) + 2e- --> Cu(s)
4.What is the correct cell notation for the reaction below?
Cu2+(aq) + 2Ag(s) + 2Cl-(aq) --> Cu(s) + 2AgCl(s)
a. Ag / AgCl // Cl- // Cu2+ Cu
b. Cu / Cu2+ // Cl- / Ag / AgCl
c. Cu / Cu2+ // Cl- / AgCl / Ag
d. Ag / AgCl / Cl- // Cu2+ / Cu
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