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K -> KOH -> Mg(OH)₂ -> MgO -> MgSO₄ -> Mg(NO₃)₂
C -> CO₂ -> Li₂CO₃ -> BaCO₃ -> BaCl₂ -> BaSO₄
K -> KOH -> Mg(OH)₂ -> MgO -> MgSO₄ -> Mg(NO₃)₂
C -> CO₂ -> Li₂CO₃ -> BaCO₃ -> BaCl₂ -> BaSO₄
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2KOH+MgCl2 = Mg(OH)2 + 2KCl
Mg(OH)2 --- MgO+H2O
MgO+H2SO4 = MgSO4+H2O
MgSO4+2HNO3 = Mg(NO3)2+H2SO4
2. C + O2 = CO2
CO2+2LiCl+H2O = Li2CO3+2HCl
Li2CO3+BaSO4 = BaCO3+Li2SO4
BaCO3+2HCl = BACl2+CO2 + H2O
BaCl2+H2SO4 = BaSO4+2HCl