1) reduction half reaction as follows PbO2 ---------------> Pb +2 Pb changes fro

Question

1) reduction half reaction as follows

PbO2 ---------------> Pb+2

Pb changes from +4 to +2 state which indicate reduction.

balance the O atom

PbO2 ---------------> Pb+2 + 2H2O

balance the H atoms by adding protons

PbO2 + 4H+ ---------------> Pb+2 + 2H2O

balance the charge.

PbO2 + 4H+ + 2e- ---------------> Pb+2 + 2H2O overall balanced reduction reaction.

2) I2 --------------> I-

I changes from 0 to -1 state so reduction.

balance the I atom

I2 --------------> 2I-

balance the charge

I2 + 2e- --------------> 2I- balanced reduction half reaction.

Explanation / Answer

Enter electrons as e. The following skeletal oxidation-reduction reaction occurs under acidic conditions. Write the balanced REDUCTION half reaction. PbO2 + NO2-NO3-+ Pb2+ Reactants Products Submit Answor Retry Entire Group 9 more group attempts remaining

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.