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2 Na + O2 = 2 NaO
Cu{+2} + Sn = Sn{+2} + Cu =>
Cu{+2} + Sn = Sn{+2} + Cu
S + (HNO3) = H2SO4 + NO2 + H2O =>
S + 6(HNO3) = H2SO4 + 6 NO2 + 2 H2O
Mg(C2H3O2)2 + NaOH = Mg(OH)2 + Na(C2H3O2) =>
Mg(C2H3O2)2 + 2 NaOH = Mg(OH)2 + 2 Na(C2H3O2)
Pb(NO3)2(aq) + BaCl2(aq) = PbCl2(s) + Ba(NO3)2(aq) =>
Pb(NO3)2(aq) + BaCl2(aq) = PbCl2(s) + Ba(NO3)2(aq)
H2SO4 + Mg = H2 + MgSO4 =>
H2SO4 + Mg = H2 + MgSO4
CO2 + NH3 = OC(NH2)2 + H2O =>
CO2 + 2 NH3 = OC(NH2)2 + H2O
KIO3 + KI + H2SO4 = I2K2SO4 + H2O =>
KIO3 + 5 KI + 3 H2SO4 = 3 I2K2SO4 + 3 H2O
ZnCl2 + NaOH = NaCl + Zn(OH)2 =>
ZnCl2 + 2 NaOH = 2 NaCl + Zn(OH)2
C5(H)9O + O2 = CO2 + H2O =>
4 C5(H)9O + 27 O2 = 20 CO2 + 18 H2O
K2CO3 + H2SO4 = K2SO4 + H2O + CO2 =>
K2CO3 + H2SO4 = K2SO4 + H2O + CO2
HNO3 + As = HAsO3 + NO2 + H2O =>
5 HNO3 + As = HAsO3 + 5 NO2 + 2 H2O
Ag2O = Ag + O2 =>
2 Ag2O = 4 Ag + O2
Al + ZnCl2 = Zn + AlCl3 =>
2 Al + 3 ZnCl2 = 3 Zn + 2 AlCl3
BaCl2 + Na2SO4 = BaSO4 + NaCl =>
BaCl2 + Na2SO4 = BaSO4 + 2 NaCl
Al2O3 = Al + O2 =>
2 Al2O3 = 4 Al + 3 O2
Al(NO3)3 + NaOH = Al(OH)3 + NaNO3 =>
Al(NO3)3 + 3 NaOH = Al(OH)3 + 3 NaNO3
C2H5OH + O = CH3COOH + H2O =>
C2H5OH + 2 O = CH3COOH + H2O
Na3PO4(aq) + CaCl2(aq) = Ca3(PO4)2(s) + NaCl(aq) =>
2 Na3PO4(aq) + 3 CaCl2(aq) = Ca3(PO4)2(s) + 6 NaCl(aq)
Na2CO3(aq) + Ca(OH)2(s) = CaCO3(s) + NaOH(aq) =>
Na2CO3(aq) + Ca(OH)2(s) = CaCO3(s) + 2 NaOH(aq)
Li + N2 = Li3N =>
6 Li + N2 = 2 Li3N
S + Cl2 = SCl6 =>
S + 3 Cl2 = SCl6
W + Cl = WCl5 =>
W + 5 Cl = WCl5
(VO2)2SO4 + SnSO4 + H2SO4 = VOSO4 + Sn(SO4)2 + H2O =>
(VO2)2SO4 + SnSO4 + 2 H2SO4 = 2 VOSO4 + Sn(SO4)2 + 2 H2O
Na2S + ZnCl2 = ZnS + NaCl =>
Na2S + ZnCl2 = ZnS + 2 NaCl
C2H5OH + I2O5 = I2 + C2H4O2 + H2O =>
5 C2H5OH + 2 I2O5 = 2 I2 + 5 C2H4O2 + 5 H2O
FeS2 + O2 = Fe2O3 + SO2 =>
4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
C2H5OH + I2 + NaOH = CHI3 + HCOONa + HI =>
C2H5OH + 4 I2 + NaOH = CHI3 + HCOONa + 5 HI
Fe2O3 + Cl = FeCl3 + O =>
Fe2O3 + 6 Cl = 2 FeCl3 + 3 O
Na2S + Zn(Cl)2 = NaCl + ZnS =>
Na2S + Zn(Cl)2 = 2 NaCl + ZnS
P + C = P4C5 =>
4 P + 5 C = P4C5
C2H4O2(g) + O2 = CO2(g) + H2O(g) =>
C2H4O2(g) + 2 O2 = 2 CO2(g) + 2 H2O(g)
CdCl2 + Na2S = CdS + NaCl =>
CdCl2 + Na2S = CdS + 2 NaCl
SiCl4 + H2O = SiO2 + HCl =>
SiCl4 + 2 H2O = SiO2 + 4 HCl
HI + Ba(OH)2 = BaI2 + H2O =>
2 HI + Ba(OH)2 = BaI2 + 2 H2O
Fe + Pb(NO3)2 = Pb2 + FeNO3 =>
4 Fe + 2 Pb(NO3)2 = Pb2 + 4 FeNO3
C2H5NO2 + H2O = C2H4O3 + NH3 =>
C2H5NO2 + H2O = C2H4O3 + NH3
LiBr + CoSO3 = Li2SO3 + Br2Co =>
2 LiBr + CoSO3 = Li2SO3 + Br2Co
Li3PO4 = Li + P + O2 =>
Li3PO4 = 3 Li + P + 2 O2
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
(CuOH)2SO4 = Cu(OH)2 + CuSO4 =>
(CuOH)2SO4 = Cu(OH)2 + CuSO4
K2 + B2O2 = K2O + B =>
2 K2 + B2O2 = 2 K2O + 2 B
C2H6 + O2 = H2O + CO2 =>
2 C2H6 + 7 O2 = 6 H2O + 4 CO2
Li2O = Li + O2 =>
2 Li2O = 4 Li + O2
Cu(OH)2 + H3PO4 = Cu3PO4 + H(OH)2 =>
3 Cu(OH)2 + H3PO4 = Cu3PO4 + 3 H(OH)2
La(s) + Cl2(g) = LaCl3(s) =>
2 La(s) + 3 Cl2(g) = 2 LaCl3(s)
K2S + MgCl2 = KCl + MgS =>
K2S + MgCl2 = 2 KCl + MgS
KOH(aq) = K{+}(aq) + OH{-}(aq) =>
KOH(aq) = K{+}(aq) + OH{-}(aq)
LiCoO2 + H2SO4 + C6H8O7 = Li2SO4 + CoSO4 + CO2 + H2O =>
18 LiCoO2 + 27 H2SO4 + C6H8O7 = 9 Li2SO4 + 18 CoSO4 + 6 CO2 + 31 H2O
NaF + FeCl3 = Na3FeF6 + NaCl =>
6 NaF + FeCl3 = Na3FeF6 + 3 NaCl
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