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CH4 + 2 O2 = CO2 + 2 H2O
Re + Cl2 = ReCl7 =>
2 Re + 7 Cl2 = 2 ReCl7
Na2(CO3) + H3PO4 = Na3PO4 + H2O + CO2 =>
3 Na2(CO3) + 2 H3PO4 = 2 Na3PO4 + 3 H2O + 3 CO2
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
NaOH + KHF = NaHF + KOH =>
NaOH + KHF = NaHF + KOH
Ca3N2 + Ta3N5 = Ca2TaN3 =>
2 Ca3N2 + Ta3N5 = 3 Ca2TaN3
Cr2O3 + H2SO4 = Cr2(SO4)3 + H2O =>
Cr2O3 + 3 H2SO4 = Cr2(SO4)3 + 3 H2O
Cu + Cr(CH3COO)3 = Cu(CH3COO) + Cr =>
3 Cu + Cr(CH3COO)3 = 3 Cu(CH3COO) + Cr
C2H2 + O2 = CO2 + H2O =>
2 C2H2 + 5 O2 = 4 CO2 + 2 H2O
HNO3 + NaHCO3 = NaNO3NaNO3 + H2O + CO2 =>
2 HNO3 + 2 NaHCO3 = NaNO3NaNO3 + 2 H2O + 2 CO2
FeSO4 + Mg(OH)2 = Fe(OH)2 + MgSO4 =>
FeSO4 + Mg(OH)2 = Fe(OH)2 + MgSO4
CuBr2(aq) + AgNO3 = AgBr(s) + Cu(NO3)2(aq) =>
CuBr2(aq) + 2 AgNO3 = 2 AgBr(s) + Cu(NO3)2(aq)
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
As2S3 + H2O2 + NH4OH = (NH4)3AsO4 + (NH4)2SO4 + H2O =>
As2S3 + 14 H2O2 + 12 NH4OH = 2(NH4)3AsO4 + 3(NH4)2SO4 + 20 H2O
H2S2O3 = H2O + SO2 + S =>
H2S2O3 = H2O + SO2 + S
FeCl3(aq) + (NH4)2S(aq) = Fe2S3(aq) + NH4Cl(aq) =>
2 FeCl3(aq) + 3(NH4)2S(aq) = Fe2S3(aq) + 6 NH4Cl(aq)
CuCl2 + H2S = CuS + HCl =>
CuCl2 + H2S = CuS + 2 HCl
HCl + NaOH = NaCl + H2O =>
HCl + NaOH = NaCl + H2O
FeCl2 + Cl2 = FeCl3 =>
2 FeCl2 + Cl2 = 2 FeCl3
BF3 + Li2SO3 = B2(SO3)3 + LiF =>
2 BF3 + 3 Li2SO3 = B2(SO3)3 + 6 LiF
FeCl2 + Cl2 = FeCl3 =>
2 FeCl2 + Cl2 = 2 FeCl3
Fe(OH)3 + SCN = Fe(SCN)3 + OH =>
Fe(OH)3 + 3 SCN = Fe(SCN)3 + 3 OH
CuSO4 + BaCO3 = BaSO4 + CuCO3 =>
CuSO4 + BaCO3 = BaSO4 + CuCO3
NiBr2 = Ni + Br =>
NiBr2 = Ni + 2 Br
K2Cr2O7 + CH3CH2CH2OH + H2SO4 = Cr2(SO4)3 + K2SO4 + CH3COOH + H2O =>
2 K2Cr2O7 + 2 CH3CH2CH2OH + 8 H2SO4 = 2 Cr2(SO4)3 + 2 K2SO4 + 3 CH3COOH + 10 H2O
K = K{+} + e =>
K = K{+} + e
Al + S = Al2S3 =>
2 Al + 3 S = Al2S3
P4 + OH{-} + H2O = H2PO4{-} + PH3 =>
2 P4 + 3 OH{-} + 9 H2O = 3 H2PO4{-} + 5 PH3
C8H18 + O2 = CO2 + H2O =>
2 C8H18 + 25 O2 = 16 CO2 + 18 H2O
N2H2 + H2O2 = N + H2O =>
N2H2 + H2O2 = 2 N + 2 H2O
CuO + C = Cu + CO =>
CuO + C = Cu + CO
C2H2O4 + Na = Na2C2O4 + H2 =>
C2H2O4 + 2 Na = Na2C2O4 + H2
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
I + Cl = ICl3 =>
I + 3 Cl = ICl3
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
KCl + Ba = KBa + Cl =>
KCl + Ba = KBa + Cl
K2Cr2O7 + SNCl2 + HCl = CrCl3 + SNCl4 + KCl + H2O =>
K2Cr2O7 + 3 SNCl2 + 14 HCl = 2 CrCl3 + 3 SNCl4 + 2 KCl + 7 H2O
Na2[Zn(OH)4] = Na2ZnO2 + H2O =>
Na2[Zn(OH)4] = Na2ZnO2 + 2 H2O
Co(NO3)2 + NaOH = Co(OH)2(s) + NaNO3 =>
Co(NO3)2 + 2 NaOH = Co(OH)2(s) + 2 NaNO3
C5 + O2 = CO2 =>
C5 + 5 O2 = 5 CO2
NaCl = Na + Cl2 =>
2 NaCl = 2 Na + Cl2
Cu + Ca = CuCa =>
Cu + Ca = CuCa
K2Cr2O7 + HCl = KCl + CrCl3 + H2O + Cl2 =>
K2Cr2O7 + 14 HCl = 2 KCl + 2 CrCl3 + 7 H2O + 3 Cl2
Na2SO4 + CuO = Na2O + CuSO4 =>
Na2SO4 + CuO = Na2O + CuSO4
Fe(OH)3(s) = Fe2O3(s) + H2O(g) =>
2 Fe(OH)3(s) = Fe2O3(s) + 3 H2O(g)
CuSO4 + SrNO3{2} = SrSO4 + CuNO3{2} =>
CuSO4 + SrNO3{2} = SrSO4 + CuNO3{2}
BaO2 + H2O = Ba(OH)2 + H2O2 =>
BaO2 + 2 H2O = Ba(OH)2 + H2O2
Mg + Sn(NO3) = Mg(NO3)2 + Sn =>
Mg + 2 Sn(NO3) = Mg(NO3)2 + 2 Sn
Al + Cu(CH3COO)2 = Al(CH3COO)5 + Cu =>
2 Al + 5 Cu(CH3COO)2 = 2 Al(CH3COO)5 + 5 Cu
S + Cl = SCl2 =>
S + 2 Cl = SCl2
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