Объяснение:
a)O2+S=SO2
SO2+H2O=H2SO3
б)2Ba+O2=2BaO
BaO+ H2O =Ba(OH)2
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Объяснение:
a)O2+S=SO2
SO2+H2O=H2SO3
б)2Ba+O2=2BaO
BaO+ H2O =Ba(OH)2