Ответ:
t
1)4FeS2+11O2=2Fe2O3+8SO2
2)2SO2+O2=2SO3
3)SO3+H2O=H2SO4
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Ответ:
t
1)4FeS2+11O2=2Fe2O3+8SO2
2)2SO2+O2=2SO3
3)SO3+H2O=H2SO4