Otrzymaj sól wykorzystując: S; O2; H2O; K
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2K+2H20= 2KOH + H2O
S+O2= SO2
2KOH+SO2 + K2SO3 + H2O
1.
S+O₂--->SO₂
2K+2H₂O--->2KOH+H₂
2KOH+SO₂--->K₂SO₃+H₂O
2.
S+O₂--->SO₂
SO₂+H₂O--->H₂SO₃
2K+H₂SO₃--->K₂SO₃+H₂