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b)weglan glinu Al2(CO3)3
c)fosforan V magnezu Mg3(PO4)2
2K + S = K2S
2KOH + H2S = K2S + 2H2O
K2O + H2S = K2S + H2O
Al2(SO4)3 + 3BaCO3 = Al2(CO3)3 + 3BaSO4
2Al(OH)3 + 2H2CO3 = Al2(CO3)3 + 6H2O
2Al(OH)3 + 3CO2 = Al2(CO3)3 + 3H20
3MgO + 2H3PO4 = Mg3(PO4)2 + 3H2O
3Mg + 2H3PO4 = Mg3(PO4)2 + 3H2
3Mg(OH)2 + 2H3PO4 = Mg3(PO4)2 + 6H2O