3K2SO3+2H3PO4=2K3PO4+2CO2+3H2O
Cr2(SO4)3+6NaOH=2Cr(OH)3+3Na2SO4
Pb(NO3)2+K2S=PbS+2KNO3
H2SO4+Ba(OH)2=BaSO4+2H2O
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3K2SO3+2H3PO4=2K3PO4+2CO2+3H2O
Cr2(SO4)3+6NaOH=2Cr(OH)3+3Na2SO4
Pb(NO3)2+K2S=PbS+2KNO3
H2SO4+Ba(OH)2=BaSO4+2H2O