Balance the following redox reaction in basic solution. H2(g)+Fe3+(aq) ---> H2O(l)+Fe2+(aq)

Answer 1

H2 + 2OH^- ==> 2H2O + 2e
Fe^3+ + e ==> Fe^2+

Multiply eqb 1 bt 1 and eqn 2 by 2, then add.