Opisz odpowiednimi równianiami reckaji poniższy tok przemian.
x1 - niepiadoma nr 1
x2 - niewiadoma nr 2 ...
1. S + O2 -> x1
2. x1 + H2O -> x2
3. x2 + NaOH -> x3
4. x1 + K2O -> x4
5. x1 + O2 -> x5
6. x5 + H2O -> x6
7. x5 + CaO -> x7
8. x6 + Al2O3 -> x8
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1. S + O2 -> SO₂
2. SO₂ + H2O ->H₂SO₃
3. H₂SO₃ + NaOH -> NaSO₃ + H₂O
4. SO₂ + K2O ->K₂SO₃
5. 2SO₂ + O2 (katalizator)-->2SO³
6. SO₃+ H2O ->H₂SO₄
7. SO₃ + CaO -> CaSO₄
8. 3H₂SO₄+ Al2O3 ->Al₂(SO₄)₃ + 3H₂O