SOS!!!!! S-SO2-SO3-MgSO4-K2SO4

Question

SOS!!!!!
S-SO2-SO3-MgSO4-K2SO4

Answer 1

S + O₂ = SO₂
2SO₂ + O₂ = 2SO₃
SO₃ + MgO = MgSO₄
MgSO₄ + 2KOH = Mg(OH)₂ + K₂SO₄