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2 ZnS + 3 O2 = 2 ZnO + 2 SO2
Pb(NO3)2 + Na2SO4 = Pb2(SO4)2 + NaNO3 =>
2 Pb(NO3)2 + 2 Na2SO4 = Pb2(SO4)2 + 4 NaNO3
Al2(SO4)3 + Ca(OH)2 = Al(OH)3 + CaSO4 =>
Al2(SO4)3 + 3 Ca(OH)2 = 2 Al(OH)3 + 3 CaSO4
NH4OH + Hg(NO3)2 = Hg(OH)2 + NH4NO3 =>
2 NH4OH + Hg(NO3)2 = Hg(OH)2 + 2 NH4NO3
H2O + SO3 = H2SO4 =>
H2O + SO3 = H2SO4
NaBr + Cl2 = NaCl + Br2 =>
2 NaBr + Cl2 = 2 NaCl + Br2
PbO + O2 = Pb3O4 =>
6 PbO + O2 = 2 Pb3O4
CO2 + H20 = C6H12O6 + O2 =>
30 CO2 + 3 H20 = 5 C6H12O6 + 15 O2
MG + S = MGS =>
MG + S = MGS
H2O + SO3 = H2SO4 =>
H2O + SO3 = H2SO4
C + H2SO4 = CO2 + SO2 + H2O =>
C + 2 H2SO4 = CO2 + 2 SO2 + 2 H2O
FeCl3 + KI = I2 + FeCl2 + KCl =>
2 FeCl3 + 2 KI = I2 + 2 FeCl2 + 2 KCl
P + HNO3 + H20 = H3PO4 + NO =>
20 P + 40 HNO3 + H20 = 20 H3PO4 + 40 NO
Mg + O2 = MgO =>
2 Mg + O2 = 2 MgO
H3PO4 = H2O + P4O10 =>
4 H3PO4 = 6 H2O + P4O10
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
Mg + O2 = Mg2O =>
4 Mg + O2 = 2 Mg2O
NAHCO3 = NAOH + CO2 =>
NAHCO3 = NAOH + CO2
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
CaBr2 + F2 = CaF2 + Br2 =>
CaBr2 + F2 = CaF2 + Br2
C2H5OH + CUO = C2H3OH + CU + H2O =>
C2H5OH + CUO = C2H3OH + CU + H2O
Al + F2 = Al{3+} + F{-} =>
2 Al + 3 F2 = 2 Al{3+} + 6 F{-}
CH3COOH = CH3COOCH2OH =>
3 CH3COOH = 2 CH3COOCH2OH
Zn + H2SO3 = ZnSO3 + H2 =>
Zn + H2SO3 = ZnSO3 + H2
Cu2O + O2 = CuO =>
2 Cu2O + O2 = 4 CuO
H2SO4 + NH4OH = H2O + (NH4)2SO4 =>
H2SO4 + 2 NH4OH = 2 H2O + (NH4)2SO4
Fe2O3 + C = Fe + CO2 =>
2 Fe2O3 + 3 C = 4 Fe + 3 CO2
Al2 + H2O = Al2O3 + H2 =>
Al2 + 3 H2O = Al2O3 + 3 H2
FeS2 + O2 = Fe2O3 + SO2 =>
4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
H3PO4 + NH3 = ((NH4)3PO4) =>
H3PO4 + 3 NH3 = ((NH4)3PO4)
K2O + H3PO4 = K3PO4 + H2O =>
3 K2O + 2 H3PO4 = 2 K3PO4 + 3 H2O
H2SO4 + NaNO2 = HNO2 + Na2SO4 =>
H2SO4 + 2 NaNO2 = 2 HNO2 + Na2SO4
CAO + HCl = CACl2 + H2O =>
CAO + 2 HCl = CACl2 + H2O
Mg + HCl = MgCl2 + H =>
Mg + 2 HCl = MgCl2 + 2 H
N2 + O2 = NO2 =>
N2 + 2 O2 = 2 NO2
Fe + HNO3 = FeNO3 + NO2 + H2O =>
Fe + 2 HNO3 = FeNO3 + NO2 + H2O
Ca + Cl2 = CaCl2 =>
Ca + Cl2 = CaCl2
Al4C3 + F2 = AlF3 + CF4 =>
Al4C3 + 12 F2 = 4 AlF3 + 3 CF4
NaBr + Cl2 = NaCl2 + Br2 =>
2 NaBr + 2 Cl2 = 2 NaCl2 + Br2
Fe + Pd{2+} = Fe{3+} + Pd =>
2 Fe + 3 Pd{2+} = 2 Fe{3+} + 3 Pd
Cr2O3 + Na2CO3 + KNO3 = Na2CrO4 + CO2 + KNO2 =>
Cr2O3 + 2 Na2CO3 + 3 KNO3 = 2 Na2CrO4 + 2 CO2 + 3 KNO2
Pb(NO3)2 = PbO + NO2 + O2 =>
2 Pb(NO3)2 = 2 PbO + 4 NO2 + O2
Zn + Pb(No3) = Pb + Zn(No3)2 =>
Zn + 2 Pb(No3) = 2 Pb + Zn(No3)2
MnO2 + HCl = MnCl2 + H2O + Cl2 =>
MnO2 + 4 HCl = MnCl2 + 2 H2O + Cl2
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
C4H10 + O2 = CO2 + H2O =>
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
C4H10 + Br2 = C4H9Br + HBr =>
C4H10 + Br2 = C4H9Br + HBr
Fe2O3 + HNO3 = Fe(NO3)3 + H2O =>
Fe2O3 + 6 HNO3 = 2 Fe(NO3)3 + 3 H2O
Fe2O3 + A1 = A12O3 + Fe =>
Fe2O3 + 12 A1 = A12O3 + 2 Fe
NaSO4 + H2O = NaO + H2SO4 =>
NaSO4 + H2O = NaO + H2SO4
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