PbCO3+SiO2 HgSO3+HCl SnBr2+Na2SO4 CuSiO3
2PbCo3+SiO2=Si(CO3)2+2PbO
HgSO3+2HCl=HgCl2+H2SO3
SnBr2+Na2SO4=2NaBr+SnSO4
CuSiO3=CuO+SiO2
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2PbCo3+SiO2=Si(CO3)2+2PbO
HgSO3+2HCl=HgCl2+H2SO3
SnBr2+Na2SO4=2NaBr+SnSO4
CuSiO3=CuO+SiO2