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2 Al + Cr2O3 = Al2O3 + 2 Cr
SnO2 + H2 = Sn + H2O =>
SnO2 + 2 H2 = Sn + 2 H2O
C + SO2 = CS2 + CO =>
5 C + 2 SO2 = CS2 + 4 CO
P4 + Br2 = PBr3 =>
P4 + 6 Br2 = 4 PBr3
Mg + HClO4 = MgClO4 + H2 =>
2 Mg + 2 HClO4 = 2 MgClO4 + H2
Sr(OH)2 + HBr = SrBr2 + H2(OH)2 =>
Sr(OH)2 + 2 HBr = SrBr2 + H2(OH)2
Sn + [Fe(CN)6] = Sn3[Fe(CN)6]4 =>
3 Sn + 4[Fe(CN)6] = Sn3[Fe(CN)6]4
Fe + CuNO3 = Cu + Fe(NO3)2 =>
Fe + 2 CuNO3 = 2 Cu + Fe(NO3)2
CoC2O4*2H2O = CoO + CO2 + CO + H2O =>
CoC2O4*2H2O = CoO + CO2 + CO + 2 H2O
Ca + HF = CaF2 + H2 =>
Ca + 2 HF = CaF2 + H2
Mg2(C)3 + H2O = Mg(OH)2 + C3H4 =>
Mg2(C)3 + 4 H2O = 2 Mg(OH)2 + C3H4
Si(OH)4 + NaBr = SiBr4 + NaOH =>
Si(OH)4 + 4 NaBr = SiBr4 + 4 NaOH
CH3COOH + CaCO3 = CH3COO2Ca + CO2 + H2O =>
7 CH3COOH + 8 CaCO3 = 8 CH3COO2Ca + 6 CO2 + 2 H2O
MgCO3(s)H2SO4(aq) = MgSO4(aq)H2CO3(s) =>
MgCO3(s)H2SO4(aq) = MgSO4(aq)H2CO3(s)
CH3COOK + H2SO4 = K2SO4 + CH3COOH =>
2 CH3COOK + H2SO4 = K2SO4 + 2 CH3COOH
Ba(OH)2 + LiSO4 = BaSO4 + Li(OH)2 =>
Ba(OH)2 + LiSO4 = BaSO4 + Li(OH)2
AgNO3(aq)NaCl(aq) = AgCl(s)NaNO3(aq) =>
AgNO3(aq)NaCl(aq) = AgCl(s)NaNO3(aq)
C2H5OH + O2 = CO2 + H2O =>
C2H5OH + 3 O2 = 2 CO2 + 3 H2O
AgNO3 + NaI = AgI + NaNO3 =>
AgNO3 + NaI = AgI + NaNO3
Al2O3 + Mg = MgO + Al =>
Al2O3 + 3 Mg = 3 MgO + 2 Al
Al + MnO2 = (Al2)O3 + Mn =>
4 Al + 3 MnO2 = 2(Al2)O3 + 3 Mn
Br2 = Br =>
Br2 = 2 Br
(HCOO)2Ca = HCOH + CaCO3 =>
(HCOO)2Ca = HCOH + CaCO3
Fe2(SO4)3(aq) + Sr(NO3)2(aq) = Fe(NO3)3(aq) + SrSO4(s) =>
Fe2(SO4)3(aq) + 3 Sr(NO3)2(aq) = 2 Fe(NO3)3(aq) + 3 SrSO4(s)
SiO2 + HF = SiF4 + H2O =>
SiO2 + 4 HF = SiF4 + 2 H2O
P + H2 = PH3 =>
2 P + 3 H2 = 2 PH3
Fe2O3 + C = Fe + CO2 =>
2 Fe2O3 + 3 C = 4 Fe + 3 CO2
CH3COOH + ZnO = (CH3COO)2Zn + H2O =>
2 CH3COOH + ZnO = (CH3COO)2Zn + H2O
NaMnO4 + MgI2 + H2SO4 = MnSO4 + I2 + MgSO4 + NaSO4 + H2O =>
NaMnO4 + 2 MgI2 + 4 H2SO4 = MnSO4 + 2 I2 + 2 MgSO4 + NaSO4 + 4 H2O
Al(NO3)3(aq) + Na3PO4(aq) = AlPO4(s) + NaNO3(aq) =>
Al(NO3)3(aq) + Na3PO4(aq) = AlPO4(s) + 3 NaNO3(aq)
AlBr3 + K2SO4 = KBr + Al2(SO4)3 =>
2 AlBr3 + 3 K2SO4 = 6 KBr + Al2(SO4)3
Ag2S + H2O = Ag + HS + OH =>
Ag2S + H2O = 2 Ag + HS + OH
FeCl3(aq) + KSCN(aq) = Fe(SCN)3(aq) + KCl(aq) =>
FeCl3(aq) + 3 KSCN(aq) = Fe(SCN)3(aq) + 3 KCl(aq)
CO + H2 = CH3OH =>
CO + 2 H2 = CH3OH
KMnO4 + HNO3 + H2SO4 = K2SO4 + HNO5 + MnSO4 + H2O =>
4 KMnO4 + 5 HNO3 + 6 H2SO4 = 2 K2SO4 + 5 HNO5 + 4 MnSO4 + 6 H2O
C2H6S + O2 = CO2 + H2O + SO2 =>
2 C2H6S + 9 O2 = 4 CO2 + 6 H2O + 2 SO2
C3H6O + O2 = H2O + CO2 =>
C3H6O + 4 O2 = 3 H2O + 3 CO2
Ca(OH)2 + CO2 = CaCO3 + H2O =>
Ca(OH)2 + CO2 = CaCO3 + H2O
HBr + Mg(OH)2 = MgBr2 + H2O =>
2 HBr + Mg(OH)2 = MgBr2 + 2 H2O
AlCl3 + CH3COONa + H2O = Al(OH)(CH3COO)2 + HCl + NaOH =>
AlCl3 + 2 CH3COONa + 3 H2O = Al(OH)(CH3COO)2 + 3 HCl + 2 NaOH
N2O5 + H2O = HNO3 =>
N2O5 + H2O = 2 HNO3
Pb(NO3)2 + KI = PbI2 + KNO3 =>
Pb(NO3)2 + 2 KI = PbI2 + 2 KNO3
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
Na3Po4(aq) + FeCl3(aq) = NaCl(aq) + FePo4(s) =>
Na3Po4(aq) + FeCl3(aq) = 3 NaCl(aq) + FePo4(s)
Al2(SO4)3 + Ca(OH)2 = Al(OH)3 + CaSO4 =>
Al2(SO4)3 + 3 Ca(OH)2 = 2 Al(OH)3 + 3 CaSO4
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
HClO3 + NaCl = NaClO + H2O + Cl2 =>
2 HClO3 + 5 NaCl = 5 NaClO + H2O + Cl2
NH3 + O2 = N2 + H2O =>
4 NH3 + 3 O2 = 2 N2 + 6 H2O
CaCO3 + HNO3 = Ca(NO3)2 + CO2 + H2O =>
CaCO3 + 2 HNO3 = Ca(NO3)2 + CO2 + H2O
Fe + HNO3(diluted) = Fe(NO3)2 + NO + H2O =>
3 Fe + 8 HNO3(diluted) = 3 Fe(NO3)2 + 2 NO + 4 H2O
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