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2 ZnS + O2 = 2 ZnO + 2 S
K2C2O4 + KMnO4 + H2O = K2CO3 + KHCO3 + MnO2 =>
3 K2C2O4 + 2 KMnO4 + 2 H2O = 2 K2CO3 + 4 KHCO3 + 2 MnO2
Fe + MnO4{-} + H2O = Fe{3+} + Mn{2+} + OH{-} =>
5 Fe + 3 MnO4{-} + 12 H2O = 5 Fe{3+} + 3 Mn{2+} + 24 OH{-}
Br + S + H2O = HBr + SO2 =>
4 Br + S + 2 H2O = 4 HBr + SO2
Zn + H2SO4 = ZnSO4 + H2S + H2O =>
4 Zn + 5 H2SO4 = 4 ZnSO4 + H2S + 4 H2O
K4Fe(CN)6 + H2SO4 + H2O = K2SO4 + FeSO4 + (NH4)2SO4 + CO =>
K4Fe(CN)6 + 6 H2SO4 + 6 H2O = 2 K2SO4 + FeSO4 + 3(NH4)2SO4 + 6 CO
Ca(NO3)2 + Na3PO4 = Ca3(PO4)2 + NaNO3(s) =>
3 Ca(NO3)2 + 2 Na3PO4 = Ca3(PO4)2 + 6 NaNO3(s)
CuSO4 + NH3 + H2O = (Cu(NH3)4)SO4H2O =>
CuSO4 + 4 NH3 + H2O = (Cu(NH3)4)SO4H2O
HNO3 + FeO = Fe(NO3)3 + H2O + NO =>
10 HNO3 + 3 FeO = 3 Fe(NO3)3 + 5 H2O + NO
SbCl5(aq) + H2O(l) = Sb2O5(s) + HCl(aq) =>
2 SbCl5(aq) + 5 H2O(l) = Sb2O5(s) + 10 HCl(aq)
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
CH3COONH4 + Ca(OH)2 = (CH3COO)2Ca + NH4OH =>
2 CH3COONH4 + Ca(OH)2 = (CH3COO)2Ca + 2 NH4OH
FeO + PdF2 = FeF2 + PdO =>
FeO + PdF2 = FeF2 + PdO
KF(s) = K(s) + F2(g) =>
2 KF(s) = 2 K(s) + F2(g)
HCl(aq) + NaOCl(aq) = Cl2(g) + NaCl(aq) + H2O(l) =>
2 HCl(aq) + NaOCl(aq) = Cl2(g) + NaCl(aq) + H2O(l)
K + NiCl2 = Ni + KCl =>
2 K + NiCl2 = Ni + 2 KCl
NH3 + MnO4{-} = N2 + NH4{+} + MnO2 + OH{-} =>
4 NH3 + 2 MnO4{-} = N2 + 2 NH4{+} + 2 MnO2 + 4 OH{-}
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
C3H7COOH + MgO = (C3H7COO)2Mg + H2O =>
2 C3H7COOH + MgO = (C3H7COO)2Mg + H2O
LiHCO3 + H2SO4 = Li2SO4 + H2O + CO2 =>
2 LiHCO3 + H2SO4 = Li2SO4 + 2 H2O + 2 CO2
XeO3 + NaOH = Na + HXeO4 =>
XeO3 + NaOH = Na + HXeO4
C6H12 + H2 = C6H14 =>
C6H12 + H2 = C6H14
C2H6O + Na2Cr2O7 + H2SO4 = HC2H3O2 + Cr2(SO4)3 + Na2SO4 + H2O =>
3 C2H6O + 2 Na2Cr2O7 + 8 H2SO4 = 3 HC2H3O2 + 2 Cr2(SO4)3 + 2 Na2SO4 + 11 H2O
NaBrO3 = NaBr + O2 =>
2 NaBrO3 = 2 NaBr + 3 O2
KI + Pb(NO3)2 = KNO3 + PbI2 =>
2 KI + Pb(NO3)2 = 2 KNO3 + PbI2
Al + HCl = AlCl3 + H2 =>
2 Al + 6 HCl = 2 AlCl3 + 3 H2
NH4(CrO4)2 = N2 + CrO3 + H2O =>
2 NH4(CrO4)2 = N2 + 4 CrO3 + 4 H2O
NaNO3 + AsI3 + HCl = NO + H3AsO4 + HIO3 + H2O + NaCl =>
20 NaNO3 + 3 AsI3 + 20 HCl = 20 NO + 3 H3AsO4 + 9 HIO3 + H2O + 20 NaCl
(NH4)ClO4 + Al = HCl + Al2O3 + N2 + H2O =>
6(NH4)ClO4 + 10 Al = 6 HCl + 5 Al2O3 + 3 N2 + 9 H2O
H{3}PO = H{4}P{2}O{7} + H{2}O =>
2 H{3}PO = H{4}P{2}O{7} + H{2}O
HF + NaNH2 = NH3 + NaF =>
HF + NaNH2 = NH3 + NaF
Fe2O3 = Fe3 + O2 =>
6 Fe2O3 = 4 Fe3 + 9 O2
C10H18O + CH3COOH = C14H26O5 =>
C10H18O + 2 CH3COOH = C14H26O5
CuCl2 + KI = CuI + KCl + I2 =>
2 CuCl2 + 4 KI = 2 CuI + 4 KCl + I2
Ca(OH)2 + SO3 = CaSO4H2O =>
Ca(OH)2 + SO3 = CaSO4H2O
HF + Mn(OH) = MnF + H2O =>
HF + Mn(OH) = MnF + H2O
CH2CH2 + KMnO4 + H2SO4 = Mn2(SO4)3 + K2SO4 + (CH3)2CO + H2O =>
6 CH2CH2 + 2 KMnO4 + 4 H2SO4 = Mn2(SO4)3 + K2SO4 + 4(CH3)2CO + 4 H2O
(C16H31O2)2Ca + Na3PO4 = NaC16H31O2 + Ca3(PO4)2 =>
3(C16H31O2)2Ca + 2 Na3PO4 = 6 NaC16H31O2 + Ca3(PO4)2
Mg2(SO4)2 = MgSO4 =>
Mg2(SO4)2 = 2 MgSO4
BaHPO4 + H2O = Ba(OH)2 + H3PO4 =>
BaHPO4 + 2 H2O = Ba(OH)2 + H3PO4
H3PO4 + Ca(OH)2 = Ca3(PO4)2 + H2O =>
2 H3PO4 + 3 Ca(OH)2 = Ca3(PO4)2 + 6 H2O
Ca10F2(P04)6 + H2SO4 = HF + Ca(H2P04)2 + CaSO4 =>
Ca10F2(P04)6 + 7 H2SO4 = 2 HF + 3 Ca(H2P04)2 + 7 CaSO4
Ca + Mg(No3)2 = Mg + Ca(No3)2 =>
Ca + Mg(No3)2 = Mg + Ca(No3)2
NaNO2 + H3PO4 + Fe = Fe2PO4 + HNO2 + Na3 =>
3 NaNO2 + H3PO4 + 2 Fe = Fe2PO4 + 3 HNO2 + Na3
P4 + Br2 = PBr3 =>
P4 + 6 Br2 = 4 PBr3
NO2(g) + H2O(l) = NH3(g) + O2(g) =>
4 NO2(g) + 6 H2O(l) = 4 NH3(g) + 7 O2(g)
SrCl2 + Pb = PbCl2 + Sr =>
SrCl2 + Pb = PbCl2 + Sr
Fe(s) + CuCl2(aq) = FeCl2(aq) + Cu(s) =>
Fe(s) + CuCl2(aq) = FeCl2(aq) + Cu(s)
Cl2 + NH4Br = NH4Cl + Br2 =>
Cl2 + 2 NH4Br = 2 NH4Cl + Br2
C12H24 + HNO3 = CO2 + H2O + N2 =>
5 C12H24 + 72 HNO3 = 60 CO2 + 96 H2O + 36 N2
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