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2 C + O2 = 2 CO
AlBr3 + Cl2 = AlCl3 + Br2 =>
2 AlBr3 + 3 Cl2 = 2 AlCl3 + 3 Br2
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
Fe + NaOCl = Fe2O3 + Na + Cl =>
2 Fe + 3 NaOCl = Fe2O3 + 3 Na + 3 Cl
Al4C3 + H2O = CH4 + Al(OH)3 =>
Al4C3 + 12 H2O = 3 CH4 + 4 Al(OH)3
Mn + H2SO4 = HMnO4 + SO2 + H2O =>
2 Mn + 7 H2SO4 = 2 HMnO4 + 7 SO2 + 6 H2O
Br5 + O2 = Br2O5 =>
4 Br5 + 25 O2 = 10 Br2O5
C6H5COOH + O2 = CO2 + H2O =>
2 C6H5COOH + 15 O2 = 14 CO2 + 6 H2O
SnO2 + H2 = Sn + H2O =>
SnO2 + 2 H2 = Sn + 2 H2O
K + O2 = K2O =>
4 K + O2 = 2 K2O
CoBr3 + CaSO4 = CaBr2 + Co2(SO4)3 =>
2 CoBr3 + 3 CaSO4 = 3 CaBr2 + Co2(SO4)3
NH3 + OCl{-} = N2O + Cl{-} + H2O =>
2 NH3 + 4 OCl{-} = N2O + 4 Cl{-} + 3 H2O
Mg(s)Fe = FeMg =>
Mg(s)Fe = FeMg
P2O3 + H2O = H3PO3 =>
P2O3 + 3 H2O = 2 H3PO3
Fe(NO3)3 + NaCl = NaNO3 + FeCl3 =>
Fe(NO3)3 + 3 NaCl = 3 NaNO3 + FeCl3
HCl + NaOH = NaCl + H2O =>
HCl + NaOH = NaCl + H2O
(CH2)4(CCH3)2 + HBr = (CH2)4(CCH3)2HBr =>
(CH2)4(CCH3)2 + HBr = (CH2)4(CCH3)2HBr
FeCl3 + Na2CO3 = Fe2(CO3)3 + NaCl =>
2 FeCl3 + 3 Na2CO3 = Fe2(CO3)3 + 6 NaCl
FeS + Cl2 = FeCl2 + S2 =>
2 FeS + 2 Cl2 = 2 FeCl2 + S2
Ag2O = Ag + O2 =>
2 Ag2O = 4 Ag + O2
MgO + NaOH = Mg(OH)2 + Na2O =>
MgO + 2 NaOH = Mg(OH)2 + Na2O
P4 + Br2 = PBr3 =>
P4 + 6 Br2 = 4 PBr3
HCl + FeSO4 = FeCl2 + H2SO4 =>
2 HCl + FeSO4 = FeCl2 + H2SO4
Ag2O = Ag + O24 =>
24 Ag2O = 48 Ag + O24
MeCO3 = MeO + CO2 =>
MeCO3 = MeO + CO2
Fe + H2SO4 = FeSO4 + H2 =>
Fe + H2SO4 = FeSO4 + H2
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
Si2H3 + O2 = SiO2 + H2O =>
4 Si2H3 + 11 O2 = 8 SiO2 + 6 H2O
Al2S3 + NaCl = AlCl3 + Na2S =>
Al2S3 + 6 NaCl = 2 AlCl3 + 3 Na2S
Fe(No3)2 + Ba(OH)2 = Fe(OH)2 + Ba(No3)2 =>
Fe(No3)2 + Ba(OH)2 = Fe(OH)2 + Ba(No3)2
Pb3(PO4)4 + Li2CO3 = Pb(CO3)2 + Li3PO4 =>
Pb3(PO4)4 + 6 Li2CO3 = 3 Pb(CO3)2 + 4 Li3PO4
H2 + N2 = NH3 =>
3 H2 + N2 = 2 NH3
N + H = NH3 =>
N + 3 H = NH3
Mg3N2 + H2SO4 = MgSO4 + NH3 =>
Mg3N2 + 3 H2SO4 = 3 MgSO4 + 2 NH3
NO2 + NaOH = NaNO2 + NaNO3 + H2O =>
2 NO2 + 2 NaOH = NaNO2 + NaNO3 + H2O
C7H16 + O2 = CO2 + H2O =>
C7H16 + 11 O2 = 7 CO2 + 8 H2O
C6H5COONa + CH3I = C6H5COOCH3 + NaI =>
C6H5COONa + CH3I = C6H5COOCH3 + NaI
calciumcarbide + oxygen = calcium + carbondioxide =>
CaC2 + 2 O2 = Ca + 2 CO2
CO + O2 = CO2 =>
2 CO + O2 = 2 CO2
Sn100(NO3)400 + Zn100(NO3)200 + Eu100(NO3)300 + C100O100(NH2)200 = Sn100Zn100O300Eu + N200 + C100O200 + H200 =>
200 Sn100(NO3)400 + 200 Zn100(NO3)200 + 2 Eu100(NO3)300 + 3018 C100O100(NH2)200 = 200 Sn100Zn100O300Eu + 3621 N200 + 3018 C100O200 + 6036 H200
NF3 = N2 + F2 =>
2 NF3 = N2 + 3 F2
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
Zn + AgNO3 = Zn(NO3)2 + Ag =>
Zn + 2 AgNO3 = Zn(NO3)2 + 2 Ag
Ca3P2 + H2O = Ca(OH)2 + PH3 =>
Ca3P2 + 6 H2O = 3 Ca(OH)2 + 2 PH3
C2H3(g) + O2(g) = CO2(g) + H2O(l) =>
4 C2H3(g) + 11 O2(g) = 8 CO2(g) + 6 H2O(l)
P + I = PI3 =>
P + 3 I = PI3
Mg(NO3)2 + FeSO4 + H2SO4 = Fe2(SO4)3 + MgSO4 + NO + H2O =>
Mg(NO3)2 + 6 FeSO4 + 4 H2SO4 = 3 Fe2(SO4)3 + MgSO4 + 2 NO + 4 H2O
CH4 + S = CS2 + H2S =>
CH4 + 4 S = CS2 + 2 H2S
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
Cu + O2 = Cu2O =>
4 Cu + O2 = 2 Cu2O
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