1. balance the following redox equations by the ion-electron method: (25 points) a. h2o2 + fe+2 → fe+3 + h2o (in acidic solution) b. cu + hno3 → cu+2 + no + h2o (in acidic solution) c. cn– + mno4– → cno– + mno2 (in basic solution) d. br2 → bro3– + br– (in basic solution) e. s2o3–2 + i2 → i– + s4o62– (in acidic solution)