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Pb(C2H3O2)2(aq) + Na2CO3(aq) = PbCO3(s) + 2 NaC2H3O2(aq)
Pb(NO3)2(g) = PbO(s) + NO2(g) + O2(g) =>
2 Pb(NO3)2(g) = 2 PbO(s) + 4 NO2(g) + O2(g)
(Fe3)2O + CO = Fe + CO2 =>
(Fe3)2O + CO = 6 Fe + CO2
Sn + O2 = Sn2O =>
4 Sn + O2 = 2 Sn2O
Li2O + Cl = O + LiCl =>
Li2O + 2 Cl = O + 2 LiCl
Li2CO3(aq) + Ni(NO3)2(aq) = LiNO3(aq) + NiCO3(s) =>
Li2CO3(aq) + Ni(NO3)2(aq) = 2 LiNO3(aq) + NiCO3(s)
CH2Cl2 + NaOH = NaCl + CH2(OH)2 =>
CH2Cl2 + 2 NaOH = 2 NaCl + CH2(OH)2
NiOH2 + HNO3 = NiNO3 + H3O =>
NiOH2 + HNO3 = NiNO3 + H3O
BaCl2 + H3PO4 + NaOH = NaCl + Ba3(PO4)2 + H2O =>
3 BaCl2 + 2 H3PO4 + 6 NaOH = 6 NaCl + Ba3(PO4)2 + 6 H2O
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
SnCl2 + HCl = SnCl4 + H =>
SnCl2 + 2 HCl = SnCl4 + 2 H
C7H5N3O5 + O2 = CO2 + H2O + N2 =>
4 C7H5N3O5 + 23 O2 = 28 CO2 + 10 H2O + 6 N2