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2 H2S + 3 O2 = 2 SO2 + 2 H2O
SnCl4 + Na3Po4 = Sn3(Po4)4 + NaCl =>
3 SnCl4 + 4 Na3Po4 = Sn3(Po4)4 + 12 NaCl
NACl + H2O = NAOH + Cl2 + H2 =>
2 NACl + 2 H2O = 2 NAOH + Cl2 + H2
Ca(OH)2 + NH4Cl = NH4OH + CaCl2 =>
Ca(OH)2 + 2 NH4Cl = 2 NH4OH + CaCl2
H2SO4 + Fe = Fe2(SO4)3 + H2 =>
3 H2SO4 + 2 Fe = Fe2(SO4)3 + 3 H2
(NH4)2Cr2O7 = N2 + H2O + Cr2O3 =>
(NH4)2Cr2O7 = N2 + 4 H2O + Cr2O3
NaHSO3 + C3H6O = C3H6OH + SO3Na =>
NaHSO3 + C3H6O = C3H6OH + SO3Na
Fe(OH)3 + H2SO4 = Fe2(SO4)3 + H2O =>
2 Fe(OH)3 + 3 H2SO4 = Fe2(SO4)3 + 6 H2O
V2O5 + Ca = CaO + V =>
V2O5 + 5 Ca = 5 CaO + 2 V
NO + O2 = NO2 =>
2 NO + O2 = 2 NO2
Zn + HCl = ZnCl + H =>
Zn + HCl = ZnCl + H
FeCl3 + Na2SO4 = Fe2(SO4)3 + NaCl =>
2 FeCl3 + 3 Na2SO4 = Fe2(SO4)3 + 6 NaCl
HNO3 + Ca(OH)2 = Ca(NO3)2 + H2O =>
2 HNO3 + Ca(OH)2 = Ca(NO3)2 + 2 H2O
KMNO4 + MN(NO3)2 + H2O = MNO2 + KNO3 + HNO3 =>
2 KMNO4 + 3 MN(NO3)2 + 2 H2O = 5 MNO2 + 2 KNO3 + 4 HNO3
Na + ZnI2 = NaI + Zn =>
2 Na + ZnI2 = 2 NaI + Zn
AgNo3(aq) + Na2So4(aq) = Ag2So4(s) + NaNo3(aq) =>
2 AgNo3(aq) + Na2So4(aq) = Ag2So4(s) + 2 NaNo3(aq)
Al + HNo3 = Al2(No3)3 + H2 =>
4 Al + 6 HNo3 = 2 Al2(No3)3 + 3 H2
NO + O2 = NO2 =>
2 NO + O2 = 2 NO2
BaCl2 + AgNO3 = Ba(NO3)2 + AgCl =>
BaCl2 + 2 AgNO3 = Ba(NO3)2 + 2 AgCl
C7H6O3 + O2 = CO2 + H2O =>
C7H6O3 + 7 O2 = 7 CO2 + 3 H2O
Li + K2 = LiK =>
2 Li + K2 = 2 LiK
CACO3 + H2SO4 = CASO4 + H2O + CO2 =>
CACO3 + H2SO4 = CASO4 + H2O + CO2
C2I + Br = BrI2 + C =>
2 C2I + Br = BrI2 + 4 C
Ca + N2 = Ca3N2 =>
3 Ca + N2 = Ca3N2
Al + HNo3 = Al(No3)3 + H2 =>
2 Al + 6 HNo3 = 2 Al(No3)3 + 3 H2
Fe2O3 + H2 = Fe + H2O =>
Fe2O3 + 3 H2 = 2 Fe + 3 H2O
Na + O2 = Na2O =>
4 Na + O2 = 2 Na2O
H2SO4 + LiOH = H2O + Li2SO4 =>
H2SO4 + 2 LiOH = 2 H2O + Li2SO4
Na2CO3 + HCl = NaHCO3 + NaCl =>
Na2CO3 + HCl = NaHCO3 + NaCl
Na + O2 = Na2O =>
4 Na + O2 = 2 Na2O
Al + HCl = AlCl3 + H2 =>
2 Al + 6 HCl = 2 AlCl3 + 3 H2
Ca + Cl2 = CaCl =>
2 Ca + Cl2 = 2 CaCl
C15H30 + O2 = CO2 + H2O =>
2 C15H30 + 45 O2 = 30 CO2 + 30 H2O
BN + F2 = BF3 + N2 =>
2 BN + 3 F2 = 2 BF3 + N2
N2O2 = NO =>
N2O2 = 2 NO
C10H12O4S + O2 = CO2 + SO2 + H2 =>
C10H12O4S + 9 O2 = 10 CO2 + SO2 + 6 H2
H3Po4 + Ca(OH)2 = Ca3(Po4)2 + H2O =>
2 H3Po4 + 3 Ca(OH)2 = Ca3(Po4)2 + 6 H2O
Mg + CH3COOH = Mg(CH3COO)2 + H2 =>
Mg + 2 CH3COOH = Mg(CH3COO)2 + H2
C10H12O4S + O2 = CO2 + SO2 + H2O =>
C10H12O4S + 12 O2 = 10 CO2 + SO2 + 6 H2O
C12H26 + O2 = CO2 + H2O =>
2 C12H26 + 37 O2 = 24 CO2 + 26 H2O
N2 + O2 = NO =>
N2 + O2 = 2 NO
Al + CH3COOH = Al(CH3COO)3 + H2 =>
2 Al + 6 CH3COOH = 2 Al(CH3COO)3 + 3 H2
KI + BrCl = KCl + BrI =>
KI + BrCl = KCl + BrI
Fe + HNO3 = Fe(NO3)3 + N2 + H2O =>
10 Fe + 36 HNO3 = 10 Fe(NO3)3 + 3 N2 + 18 H2O
PbCO3 = PbO + CO2 =>
PbCO3 = PbO + CO2
Fe(OH)3 + H2So4 = Fe2(So4)3 + H2O =>
2 Fe(OH)3 + 3 H2So4 = Fe2(So4)3 + 6 H2O
CO2 + H2O = H2CO3 =>
CO2 + H2O = H2CO3
HI + KMnO4 + H2SO4 = I2 + MnSO4 + K2SO4 + H2O =>
10 HI + 2 KMnO4 + 3 H2SO4 = 5 I2 + 2 MnSO4 + K2SO4 + 8 H2O
Mg + HNO3 = Mg(NO3)2 + NO + H2O =>
3 Mg + 8 HNO3 = 3 Mg(NO3)2 + 2 NO + 4 H2O
O2 + Al = Al2O3 =>
3 O2 + 4 Al = 2 Al2O3
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