Redox Reactions(Basic Aqueous)

Balance the following equations, using the oxidation number method, and enter the coefficients in the boxes.The coefficients must be the smallest possible integers.
1. HPbO2-+ Re+ OH-+ H2O
圖片參考：https://nernst.chem.sfu.ca/res/sfu/batchelo/Gallery/rarrow.gif
ReO4-+ Pb+ H2O+ OH-
Note that neither H2O nor OH- should appear on more than one side of the equation. Thus, some of the coefficients above must be 0.

2. I-+ OCl-+ OH-+ H2O
圖片參考：https://nernst.chem.sfu.ca/res/sfu/batchelo/Gallery/rarrow.gif
IO3-+ Cl-+ OH-+ H2O
Note that neither H2O nor OH- should appear on more than one side of the equation. Thus, some of the coefficients above must be 0.