cân bằng : FeS + O2 => Fe2O3 + SO2
`\text{4 FeS + 7O2 -> 2Fe2O3+4SO2 }`
`\text{#hanguyen90782}`
Em tham khảo nha:
\(4FeS + 7{O_2} \xrightarrow{t^0} 2F{e_2}{O_3} + 4S{O_2}\)
Quần thể sinh vật
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