K→K2O→KOH
1) 4K + 2O2 => 2K2O
2) K2O + H2O => 2KOH
S→SO2→SO3→H2SO4
1) S + O2 => SO2
2) 2SO2 + O2 => 2SO3
3) SO3 + H2O => H2SO4
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Verified answer
K→K2O→KOH
1) 4K + 2O2 => 2K2O
2) K2O + H2O => 2KOH
S→SO2→SO3→H2SO4
1) S + O2 => SO2
2) 2SO2 + O2 => 2SO3
3) SO3 + H2O => H2SO4