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4 Fe + 3 O2 = 2 Fe2O3
KOH + H2S = H2O + K2S =>
2 KOH + H2S = 2 H2O + K2S
CH3COOH + HBr = CH3COOBr + H2 =>
CH3COOH + HBr = CH3COOBr + H2
C2H8 + O2 = CO2 + H2O =>
C2H8 + 4 O2 = 2 CO2 + 4 H2O
HF + Al3 = AlF3 + H =>
9 HF + Al3 = 3 AlF3 + 9 H
HCr2O7 = CrO + H2O + O2 =>
4 HCr2O7 = 8 CrO + 2 H2O + 9 O2
(NH4)3PO4 + Pb(NO3)4 = Pb3(PO4)4 + NH4NO3 =>
4(NH4)3PO4 + 3 Pb(NO3)4 = Pb3(PO4)4 + 12 NH4NO3
SNO + H2SO4 = SNSO4 + H2O =>
SNO + H2SO4 = SNSO4 + H2O
KOH + H3PO4 = K3PO4 + H2O =>
3 KOH + H3PO4 = K3PO4 + 3 H2O
H3AsO4 + KOH = H2O + KH2AsO4 =>
H3AsO4 + KOH = H2O + KH2AsO4
C + H2 = C6H6 =>
6 C + 3 H2 = C6H6
AgNO3 + C2H4(OH)2 = Ag + H2O + C + N =>
AgNO3 + 3 C2H4(OH)2 = Ag + 9 H2O + 6 C + N
CH3CCH3CH3OH + HCl = CH3CCH3CH3Cl + H2O =>
CH3CCH3CH3OH + HCl = CH3CCH3CH3Cl + H2O
HNO3 + NaHCO3 = NaNO3 + H2O + CO2 =>
HNO3 + NaHCO3 = NaNO3 + H2O + CO2
AIPO4 = AIPO3 + O2 =>
2 AIPO4 = 2 AIPO3 + O2
HCl + KMnO4 = KCl + MnCl2 + H2O + Cl2 =>
16 HCl + 2 KMnO4 = 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2
CaO*MgO + H2O = Ca(OH)2*MgO =>
CaO*MgO + H2O = Ca(OH)2*MgO
Cu(OH)2 + SO4H2 = CuSO4 + H2O =>
Cu(OH)2 + SO4H2 = CuSO4 + 2 H2O
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
FeH2 + H3PO4 = H3H2 + FePO4 =>
FeH2 + H3PO4 = H3H2 + FePO4
Na2CrO4(aq) + (NH4)2C2O4(aq) = Na2C2O4(NH4)2CrO4 =>
Na2CrO4(aq) + (NH4)2C2O4(aq) = Na2C2O4(NH4)2CrO4
Zn{2+} + Fe(CN)6{4-} = Zn2[Fe(CN)6] =>
2 Zn{2+} + Fe(CN)6{4-} = Zn2[Fe(CN)6]
Ba(OH)2 + NaOH = Na2BaO2 + H2O =>
Ba(OH)2 + 2 NaOH = Na2BaO2 + 2 H2O
H2SO4(aq) + Ag2O(s) = Ag2SO4(s) + H2O(l) =>
H2SO4(aq) + Ag2O(s) = Ag2SO4(s) + H2O(l)
PbCl2 + Na2S2O3 = PbS2O3 + NaCl =>
PbCl2 + Na2S2O3 = PbS2O3 + 2 NaCl
Me2O3 + K = Me + K2O =>
Me2O3 + 6 K = 2 Me + 3 K2O
HCl + MgSe = H2Se + MgCl2 =>
2 HCl + MgSe = H2Se + MgCl2
Pb(ClO2)4 + Zn(SO4) = Pb(SO4)2 + Zn(ClO2)2 =>
Pb(ClO2)4 + 2 Zn(SO4) = Pb(SO4)2 + 2 Zn(ClO2)2
Fe + Cu(NO3) = Cu + Fe(NO3)3 =>
Fe + 3 Cu(NO3) = 3 Cu + Fe(NO3)3
As2O3 + Al + HCl = AsH3 + AlCl3 + H2O =>
As2O3 + 4 Al + 12 HCl = 2 AsH3 + 4 AlCl3 + 3 H2O
MgO + H2SO3 = Mg(SO3) + H2O =>
MgO + H2SO3 = Mg(SO3) + H2O
P2H4 + H2O2 = P2 + H2O =>
P2H4 + 2 H2O2 = P2 + 4 H2O
HCl + Mg(HCO3)2 = MgCl2 + CO2 + H2O =>
2 HCl + Mg(HCO3)2 = MgCl2 + 2 CO2 + 2 H2O
Cu(OH)2 + HCl + H2O = [Cu(H2O)4]Cl2 =>
Cu(OH)2 + 2 HCl + 2 H2O = [Cu(H2O)4]Cl2
O3 = O2 =>
2 O3 = 3 O2
F2 + HBr = Br2 + HF =>
F2 + 2 HBr = Br2 + 2 HF
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
MgOSO3 = MgSO4 =>
MgOSO3 = MgSO4
Fe(OH)2 + Ca(NO3)2 = Fe(NO3)2 + Ca(OH)2 =>
Fe(OH)2 + Ca(NO3)2 = Fe(NO3)2 + Ca(OH)2
Zn + Cu(OH)2 = Zn(OH)2 + Cu =>
Zn + Cu(OH)2 = Zn(OH)2 + Cu
Fe2O3 + C = Fe + CO2 =>
2 Fe2O3 + 3 C = 4 Fe + 3 CO2
H2PO4 = H2P2O7H2O =>
2 H2PO4 = H2P2O7H2O
NaCl + H2O + CO2 = Na2CO3 + HCl =>
2 NaCl + H2O + CO2 = Na2CO3 + 2 HCl
C3H5N3O9 = CO2 + H2O + N2 + O2 =>
4 C3H5N3O9 = 12 CO2 + 10 H2O + 6 N2 + O2
S8 + O2 = SO3 =>
S8 + 12 O2 = 8 SO3
Cr2O3 + KOH + H2O = K3[Cr(OH)6] =>
Cr2O3 + 6 KOH + 3 H2O = 2 K3[Cr(OH)6]
NaF + NaOH = Na2O + HF =>
NaF + NaOH = Na2O + HF
NaMnO4 + AgNO3 = NaNO3 + AgMnO4 =>
NaMnO4 + AgNO3 = NaNO3 + AgMnO4
Na2SO3 + HCl = NaCl + SO2 + H2O =>
Na2SO3 + 2 HCl = 2 NaCl + SO2 + H2O
C8H18 + O2 = CO2 + H2O =>
2 C8H18 + 25 O2 = 16 CO2 + 18 H2O
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