a) S → SO2 → H2SO3
S + O2 → SO2
SO2 + H2O → H2SO3
b) Ba → BaO → Ba(OH)2
2 Ba + O2 → 2 BaO
BaO + H2O → Ba(OH)2
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Verified answer
a) S → SO2 → H2SO3
S + O2 → SO2
SO2 + H2O → H2SO3
b) Ba → BaO → Ba(OH)2
2 Ba + O2 → 2 BaO
BaO + H2O → Ba(OH)2