August 2021 0 7 Report
S-H2S-SO2-SO3-Na2SO4-BaSO4 1)S+H2=H2S
2)2H2S+3O2=2SO2+2H2O
3)SO2+O3=SO3+O2
4)SO3+2NaOH(разб.)=Na2SO4+H2O
5)NaSO4+......(плюс что ? чтобы получилось BaSO4)
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