posted by lucylu .
Complete and balance the following redox equation. The sum of the coefficients when they are all whole numbers is
MnO4- + H+ + Br-® Mn2+ + Br2 + H2O (acidic solution)
Mn in MnO4^- goes from +7 on the left to +2 on the right.
Br goes from -2 (for 2 Br^-) on the left to 0 on the right (for two Br atoms).
Now you balance.