What are the coefficients FeS + O₂ →→ __Fe₂O3 + __SO2 cannot

Last updated: 7/24/2022

What are the coefficients FeS + O₂ →→ __Fe₂O3 + __SO2 cannot be done 1, 3, 1.4 2, 3, 2, 4 4. 7. 2,4