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3 Fe + 2 O2 = Fe3O4
OsO4 + PtCl4 = PtO2 + OsCl8 =>
OsO4 + 2 PtCl4 = 2 PtO2 + OsCl8
SnCl4 + Na = Sn + Cl4Na =>
SnCl4 + Na = Sn + Cl4Na
Ni(NO3)2 + CuSO4 = NiSO4 + Cu(NO3)2 =>
Ni(NO3)2 + CuSO4 = NiSO4 + Cu(NO3)2
Pb(NO3) + Na(OH) = Pb(OH) + Na(NO3) =>
Pb(NO3) + Na(OH) = Pb(OH) + Na(NO3)
H2SO4 + KOH = K2SO4 + H2O =>
H2SO4 + 2 KOH = K2SO4 + 2 H2O
(NH4)2S(aq) + Fe(NO3)2(aq) = FeS(s) + NH4NO3(aq) =>
(NH4)2S(aq) + Fe(NO3)2(aq) = FeS(s) + 2 NH4NO3(aq)
C2H5OH + CO2 = CH3COOH =>
2 C2H5OH + 2 CO2 = 3 CH3COOH
Na2S + Na2SO3 + HCl = S8 + NaCl + H2O =>
16 Na2S + 8 Na2SO3 + 48 HCl = 3 S8 + 48 NaCl + 24 H2O
[Cu(H2O)6]{2+} + H2O = [Cu(H2O)5OH]{+} + H3O{+} =>
[Cu(H2O)6]{2+} + H2O = [Cu(H2O)5OH]{+} + H3O{+}
Ni + MgSO4 = NiSO4 + Mg =>
Ni + MgSO4 = NiSO4 + Mg
Ag2SO3 = Ag{+} + SO3{2-} =>
Ag2SO3 = 2 Ag{+} + SO3{2-}
Al + Pb3(PO4)2 = AlPO4 + Pb =>
2 Al + Pb3(PO4)2 = 2 AlPO4 + 3 Pb
FeCo3 + H2Co3 = Fe(HCo3)2 =>
FeCo3 + H2Co3 = Fe(HCo3)2
Na + H2O = H2 + NaOH =>
2 Na + 2 H2O = H2 + 2 NaOH
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
C6H52 + O2 = H2O + CO2 =>
C6H52 + 19 O2 = 26 H2O + 6 CO2
Ag + K2SO4 = AgSO4 + K2 =>
Ag + K2SO4 = AgSO4 + K2
CF4 + Br2 = CBr2 + F =>
CF4 + Br2 = CBr2 + 4 F
CuCO3 + HCl = CuCl2 + H2O + CO2 =>
CuCO3 + 2 HCl = CuCl2 + H2O + CO2
K + Br2 = KBr =>
2 K + Br2 = 2 KBr
V2O5 + HCl = VOCl3 + H2O =>
V2O5 + 6 HCl = 2 VOCl3 + 3 H2O
(NH4)2S + H2O = NH4OH + H2S =>
(NH4)2S + 2 H2O = 2 NH4OH + H2S
KCl + Ir(NO3)5 = IrCl5 + KNO3 =>
5 KCl + Ir(NO3)5 = IrCl5 + 5 KNO3
Fe(NH4)2(SO4)2 = Fe + NH4 + SO4 =>
Fe(NH4)2(SO4)2 = Fe + 2 NH4 + 2 SO4
Li + Br2 = LiBr =>
2 Li + Br2 = 2 LiBr
NaOH(aq) + K2SO4(aq) = Na2SO4(aq) + KOH(aq) =>
2 NaOH(aq) + K2SO4(aq) = Na2SO4(aq) + 2 KOH(aq)
CaCl2 + K3PO4 = Ca3(PO4)2 + KCl =>
3 CaCl2 + 2 K3PO4 = Ca3(PO4)2 + 6 KCl
Fe(NO3)2 + H2SO4 = Fe2(SO4)3 + Fe(NO3)3 + NO2 + H2O =>
3 Fe(NO3)2 + 3 H2SO4 = Fe2(SO4)3 + Fe(NO3)3 + 3 NO2 + 3 H2O
HNO3 + (NH4)2MoO4 + Na3PO4 = (NH4)3PMo12O40 + NH4NO3 + NaNO3 + H2O =>
24 HNO3 + 12(NH4)2MoO4 + Na3PO4 = (NH4)3PMo12O40 + 21 NH4NO3 + 3 NaNO3 + 12 H2O
Na + AlO = Al + NaO =>
Na + AlO = Al + NaO
BaO + La2O3 + ZnO + Re + ReO3 = BaLaZnReO6 =>
6 BaO + 3 La2O3 + 6 ZnO + Re + 5 ReO3 = 6 BaLaZnReO6
ZHCl = H2 + ZCl =>
2 ZHCl = H2 + 2 ZCl
KMnO4 + NaOH + KI = Na2MnO4 + KIO3 + H2O + KOH =>
6 KMnO4 + 12 NaOH + KI = 6 Na2MnO4 + KIO3 + 3 H2O + 6 KOH
Hg2(NO3)2(aq) + HI(aq) = Hg2I(s) + H(NO3)2(aq) =>
Hg2(NO3)2(aq) + HI(aq) = Hg2I(s) + H(NO3)2(aq)
Pb + Mg = PbMg =>
Pb + Mg = PbMg
HSO3 + I2 + H2O = HSO4 + HI =>
HSO3 + I2 + H2O = HSO4 + 2 HI
P4 + NaOH + H1O = PH3 + Na2HPO3 =>
5 P4 + 24 NaOH + 12 H1O = 8 PH3 + 12 Na2HPO3
C2H4O2 + C7H8 = C9H12O2 =>
C2H4O2 + C7H8 = C9H12O2
MnO + Na3AsO4 = Mn3(AsO4)2 + Na2O =>
3 MnO + 2 Na3AsO4 = Mn3(AsO4)2 + 3 Na2O
FeSO4 + H2SO4 + MnO2 = Fe2(SO4)3 + H2O + MnSO4 =>
2 FeSO4 + 2 H2SO4 + MnO2 = Fe2(SO4)3 + 2 H2O + MnSO4
FeSO4 + KCN = K4(Fe(CN)6) + K2SO4 =>
FeSO4 + 6 KCN = K4(Fe(CN)6) + K2SO4
Na2CO3 + Ca(Na3)2 = CaCO3 + Na2(Na3)2 =>
Na2CO3 + Ca(Na3)2 = CaCO3 + Na2(Na3)2
NaOH(aq) + K2SO4(aq) = Na2SO4(aq) + KOH(aq) =>
2 NaOH(aq) + K2SO4(aq) = Na2SO4(aq) + 2 KOH(aq)
silvernitrate + potassiumcarbonate = Ag2CO3 + potassiumnitrate =>
2 AgNO3 + K2CO3 = Ag2CO3 + 2 KNO3
P2O5 + H2O = H3PO4 =>
P2O5 + 3 H2O = 2 H3PO4
CuO + H3PO4 = Cu3(PO4)2 + H2O =>
3 CuO + 2 H3PO4 = Cu3(PO4)2 + 3 H2O
Li + Br2 = LiBr =>
2 Li + Br2 = 2 LiBr
Pb(OH)2 + CH3COOH = (CH3COO)2Pb + H2O =>
Pb(OH)2 + 2 CH3COOH = (CH3COO)2Pb + 2 H2O
CF4 + Br2 = CBr2 + F2 =>
CF4 + Br2 = CBr2 + 2 F2
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