1) The standard emf for the cell using the overall cell reaction below is +0.48 V: Zn(s) + Ni2+(aq) ? Zn2+(aq) + Ni(s) The emf generated by the cell when [Ni2+] = 2.50 M and [Zn2+] = 0.100 M is
A) 0.52
B) 0.50
C) 0.44
D) 0.40
E) 0.56

2) What is the standard cell potential for the voltaic cell formed from a Cu/Cu⁺ half-cell (E°=0.52 V) and a Sn²⁺/Sn⁴⁺ half-cell (E°=0.15 V)?
A) +0.67 V
B) -0.37 V
C) -0.67 V
D) +0.37 V

3) What is the reducing agent in the redox reaction represented by the following cell notation?
Mg(s) | Mg ²⁺(aq) || Ag⁺(aq) | Ag(s)
A) Pt
B) Mg ²⁺(aq)
C) Mg(s)
D) Ag(s)
E) Ag⁺(aq)

4) Which reaction could be used to generate electricity in a voltaic electrochemical cell?

A) Zn2+(aq)+Sn(s)?Sn2+(aq)+Zn(s)
	B) Pb2+(aq)+Mg(s)?Mg2+(aq)+Pb(s)
	C) NaCl(aq)+AgNO3(aq)?AgCl(s)+NaNO3(aq)
	D) None of the above