DUAAALMIRZA2000GO DUAAALMIRZA2000GO Chemistry Answered Which one of the following reactions is NOT balanced? 2 CO + O2 + 2 CO2 2 SO2 + O2 +2 SO3 2 KNO3 + 10 K 5 K20 + N2 SF4 + 3 H2O → H2SO3 + 4HF