A voltaic cell is constructed from a standard Pb2+|Pb half cell (E°red = -0.126V) and a standard Cr3+|Cr half cell (E°red = -0.740V). The anode reaction is:     +              +     The cathode reaction is:     +              +     The spontaneous cell reaction is:     +              +

A voltaic cell is constructed from a standard Cu²+ Cu half cell (E° red 0.337V) and a standard Br2 |Br half cell (E° 1.080V). red (Use the lowest possible coefficients. Be sure to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is: + + The cathode reaction is: + The spontaneous cell reaction is: + The cell voltage is V. + + ↑

A voltaic cell is constructed in which the anode is a Pb | Pb²+ half cell and the cathode is a l| 12 half cell. The half-cell compartments are connected by a salt bridge. (Use the lowest possible coefficients. Be sure to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is: The cathode reaction is: + The net cell reaction is: + → ↑ In the external circuit, electrons migrate In the salt bridge, anions migrate + + Enter electrons as e + the 1₂ electrode the 1₂ compartment [ the Pb | Pb²+ electrode. the Pb | Pb2+ compartment.

A voltaic cell is constructed in which the anode is a Pb|Pb2+ half cell and the cathode is a I-|I2 half cell. The half-cell compartments are connected by a salt bridge. (Use the lowest possible coefficients. Be sure to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is:     +              +     The cathode reaction is:     +              +     The net cell reaction is:     +              +     In the external circuit, electrons migrate _(from or to?)__ the I-|I2 electrode _(from or to?)__the  Pb|Pb2+ electrode.In the salt bridge, anions migrate _(from or to?)__ the Pb|Pb2+ compartment _(from or to?)__ the I-|I2 compartment.

A voltaic cell is constructed from a standard Al3+|Al half cell (E°red = -1.660V) and a standard H+|H2 half cell (E°red = 0.000V). The anode reaction is:     +             +     The cathode reaction is:     +             +     The spontaneous cell reaction is:     +             +     The cell voltage is V.

A voltaic cell is constructed from a standard Zn2+|Zn half cell (E°red = -0.763V) and a standard Ag+|Ag half cell (E°red = 0.799V). The anode reaction is:     +             +     The cathode reaction is:     +             +     The spontaneous cell reaction is:     +             +     The cell voltage is V.

A voltaic cell is constructed from a standard Cu2+|Cu half cell (E°red 0.337V) and %D a standard H+|H2 half cell (E°red 0.000V). %3| The anode reaction is: + + The cathode reaction is: + The spontaneous cell reaction is: + + | The cell voltage is V. + ↑

A voltaic cell is constructed using an Al metal electrode in a 1.00 M Al3+ solution, and the other half cell contains a Fe metal electrode submerged in a 1.00 M Fe2+ solution.    Al3+  +  3e-⟶ Al(s)  Eo = -1.66 V Fe2+  +  2e-⟶ Fe(s)  Eo = -0.440 V Determine anode and cathode Balance and write the overall reaction

A voltaic cell is constructed from a standard = Sn2+ Sn half cell (E° red -0.140V) and a standard F2 F half cell (E° red = 2.870V). (Use the lowest possible coefficients. Be sure to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is: + The cathode reaction is: + The spontaneous cell reaction is: + The cell voltage is V. ↑ + + +

A voltaic cell is constructed from a standard Hg2* Hg half cell (E°red = 0.855V) and a standard Br2 Br half cell (E°red = 1.080V). (Use the lowest possible coefficients. Be sure to specify states such as (ag) or (s). If a box is not needed, leave it blank.) The anode reaction is: + The cathode reaction is: The spontaneous cell reaction is: The cell voltage is V.