9)
S+O2=SO2
SO2+O=SO3
SO3+H2O=H2SO4
H2SO4+BaCl2=BaSO4+2HCl
8)
А-3
Б-4
В-2
Г-1
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Answers & Comments
9)
S+O2=SO2
SO2+O=SO3
SO3+H2O=H2SO4
H2SO4+BaCl2=BaSO4+2HCl
8)
А-3
Б-4
В-2
Г-1