Ответ:
S+O=SO2
2SO2+O2=2SO3
SO3+H2O=H2SO4
3H2SO4+2FeCl3=Fe2(SO4)3+6HCl
Fe2(SO4)3=3SO3+Fe2O3
SO3+K2O=K2SO4
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Ответ:
S+O=SO2
2SO2+O2=2SO3
SO3+H2O=H2SO4
3H2SO4+2FeCl3=Fe2(SO4)3+6HCl
Fe2(SO4)3=3SO3+Fe2O3
SO3+K2O=K2SO4
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