Place the coefficients in a chemical reaction using the electron-ion method (half-reaction method)

Place the coefficients in a chemical reaction using the electron-ion method (half-reaction method), indicate the oxidation and reduction processes Fe + KNO3 → Fe2O3 + N2 + K2O.

Fe + KNO3 -> Fe2O3 + N2 + K2O; 2Fe (0) -6e -> 2Fe (3+) | five; 2N (+5) + 10e -> N2 (0) | 3; 10Fe + 6KNO3 => 5Fe2O3 + 3N2 ↑ + 3K2O; Oxidizing agent is an atom that attaches electrons to itself during a chemical reaction – N (+5). In this case, the recovery process takes place. Reducing agent – an atom that donates electrons during a chemical reaction – Fe (0). In this case, the oxidation process occurs.