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4 Zn + 5 H2SO4 = H2S + 4 ZnSO4 + 4 H2O
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
S + O2 = SO2 =>
S + O2 = SO2
C4H10(g) + O2(g) = CO2(g) + H2O(g) =>
2 C4H10(g) + 13 O2(g) = 8 CO2(g) + 10 H2O(g)
C3H8O3 + CO = C4H6O4 =>
3 C3H8O3 + 7 CO = 4 C4H6O4
MgHPO4 + HCl = MgCl + HHPO4 =>
MgHPO4 + HCl = MgCl + HHPO4
HCl + Sb2O3 = SbCl3 + H2O =>
6 HCl + Sb2O3 = 2 SbCl3 + 3 H2O
HBr + (NH4)2S = BrNH4 + H2S =>
2 HBr + (NH4)2S = 2 BrNH4 + H2S
NO = N20 + NO2 =>
40 NO = N20 + 20 NO2
Fe + O2 = Fe3O4 =>
3 Fe + 2 O2 = Fe3O4
K(s) + H2O(l) = KOH(aq) + H2(g) =>
2 K(s) + 2 H2O(l) = 2 KOH(aq) + H2(g)
CaCO3 + H2SO4 = CaSO4 + CO2 + H2O =>
CaCO3 + H2SO4 = CaSO4 + CO2 + H2O
C3H8O3 + CO = C4H6O4 =>
3 C3H8O3 + 7 CO = 4 C4H6O4
C3H8(g) + O2(g) = CO2(g) + H2O(g) =>
C3H8(g) + 5 O2(g) = 3 CO2(g) + 4 H2O(g)
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
C2H5OH(l) + O2(g) = CO2(g) + H2O(g) =>
C2H5OH(l) + 3 O2(g) = 2 CO2(g) + 3 H2O(g)
P4 + SoCl2 = PCl3 + So2 =>
P4 + 6 SoCl2 = 4 PCl3 + 3 So2
Cu + H2SO4 + H2O = CuSO4*5H2O + H2 =>
Cu + H2SO4 + 5 H2O = CuSO4*5H2O + H2
SO2(g) + O2(g) = SO3(g) =>
2 SO2(g) + O2(g) = 2 SO3(g)
P + Br2 = PBr5 =>
2 P + 5 Br2 = 2 PBr5
C3H7Br + KOH = C3H7OH + KBr =>
C3H7Br + KOH = C3H7OH + KBr
NO2 + H2O = HNO3 + NO =>
3 NO2 + H2O = 2 HNO3 + NO
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
NO = N + O2 =>
2 NO = 2 N + O2
Al + F2 = AlF3 =>
2 Al + 3 F2 = 2 AlF3
C2HNa + CH3I = C3H4 + NaI =>
C2HNa + CH3I = C3H4 + NaI
FeS + O2 = Fe2O3 + SO2 =>
4 FeS + 7 O2 = 2 Fe2O3 + 4 SO2
HgCl2 + Pb = Hg2 + PbCl2 =>
2 HgCl2 + 2 Pb = Hg2 + 2 PbCl2
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
Ba(OH)2(aq) + HNO3(aq) = Ba(NO3)2(aq) + H2O(l) =>
Ba(OH)2(aq) + 2 HNO3(aq) = Ba(NO3)2(aq) + 2 H2O(l)
N2 + NaOH = NaNO3 + NaN + H2O =>
3 N2 + 6 NaOH = NaNO3 + 5 NaN + 3 H2O
FeO + O2 = Fe3O4 =>
6 FeO + O2 = 2 Fe3O4
ZnBr2 + LiOH = LiBr + Zn(OH)2 =>
ZnBr2 + 2 LiOH = 2 LiBr + Zn(OH)2
SO2 + H2S = S + H2O =>
SO2 + 2 H2S = 3 S + 2 H2O
FE + Cl = FECl3 =>
FE + 3 Cl = FECl3
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
HNO2 + HI = NO + I2 + H2O =>
2 HNO2 + 2 HI = 2 NO + I2 + 2 H2O
Na2SO3 + O2 = Na2SO4 =>
2 Na2SO3 + O2 = 2 Na2SO4
Al + HCl = AlCl3 + H2 =>
2 Al + 6 HCl = 2 AlCl3 + 3 H2
Zn(s) + H2SO4(aq) = ZnSO4(aq) + H2(g) =>
Zn(s) + H2SO4(aq) = ZnSO4(aq) + H2(g)
Fe(NO3)3 + NaOH = Fe(OH)3 + NaNO3 =>
Fe(NO3)3 + 3 NaOH = Fe(OH)3 + 3 NaNO3
AlCl3 + Ba(No3)2 = BaCl2 + Al(No3)3 =>
2 AlCl3 + 3 Ba(No3)2 = 3 BaCl2 + 2 Al(No3)3
Sb(s) + Cl2(g) = SbCl3(s) =>
2 Sb(s) + 3 Cl2(g) = 2 SbCl3(s)
NaOH + NaOCl + H2S = NaCl + H2O + NaSO4 =>
2 NaOH + 9 NaOCl + 2 H2S = 9 NaCl + 3 H2O + 2 NaSO4
AlCl3 + Ba(No3)2 = BaCl2 + Al(No3)3 =>
2 AlCl3 + 3 Ba(No3)2 = 3 BaCl2 + 2 Al(No3)3
Fe + KOH = Fe(OH)2 + K =>
Fe + 2 KOH = Fe(OH)2 + 2 K
C2H3Br3 + O2 = CO2 + H2O + Br2 =>
4 C2H3Br3 + 11 O2 = 8 CO2 + 6 H2O + 6 Br2
HCl + NaOH = NaCl + H2O =>
HCl + NaOH = NaCl + H2O
Sb(s) + Cl2(g) = SbCl3(s) =>
2 Sb(s) + 3 Cl2(g) = 2 SbCl3(s)
CO(g) + I2O5(s) = I2(s) + CO2(g) =>
5 CO(g) + I2O5(s) = I2(s) + 5 CO2(g)
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