2Na + H2SO4 →Na2SO4+H2
Ca(OH)2 + H2CO3 →CaCO3+2H2O
Li2O +H2O →2LiOH
CuSO4 + 2KOH →Cu(OH)2+K2SO4
2Al + 3ZnCl2 →2AlCl3+3Zn
SO2 + H2O →H2SO3
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2Na + H2SO4 →Na2SO4+H2
Ca(OH)2 + H2CO3 →CaCO3+2H2O
Li2O +H2O →2LiOH
CuSO4 + 2KOH →Cu(OH)2+K2SO4
2Al + 3ZnCl2 →2AlCl3+3Zn
SO2 + H2O →H2SO3