Question

Balance the following redox reaction using the half reaction method:
NaIO3+KI==> I2+H20+Na(+1)+K(+1)

Answer 1

I'll help you get started with oxidation states. I changes from +5 on the left in NaIO3 to 0 on the right in I2. I changes from -1 on the left in KI to 0 on the right in I2.