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4 NaBr + O2 = 2 Na2O + 2 Br2
AsCl3 + H2S = As2S3 + HCl =>
2 AsCl3 + 3 H2S = As2S3 + 6 HCl
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
NaBr(ac) + Cl2(g) = NaCl(ac) + Br2 =>
2 NaBr(ac) + Cl2(g) = 2 NaCl(ac) + Br2
Cu3AsO4 + Ni(MnO4)3 = CuMnO4 + NiAsO4 =>
Cu3AsO4 + Ni(MnO4)3 = 3 CuMnO4 + NiAsO4
Mn2Si + O2 = Mn + SiO2 =>
Mn2Si + O2 = 2 Mn + SiO2
HCl + Fe(NO3)3 = FeCl + H(NO3)3 =>
HCl + Fe(NO3)3 = FeCl + H(NO3)3
Hg + O2 = HgO =>
2 Hg + O2 = 2 HgO
CaS(aq) + BaCl2(aq) = BaS(s) + CaCl2(aq) =>
CaS(aq) + BaCl2(aq) = BaS(s) + CaCl2(aq)
C + O2 + Fe2O3 = FeCO2 =>
4 C + O2 + 2 Fe2O3 = 4 FeCO2
Ba(OH)2 + ZnS = BaS2 + Zn(OH) =>
Ba(OH)2 + 2 ZnS = BaS2 + 2 Zn(OH)
HCl + MgCO3 = MgCl2 + CO2 + H2O =>
2 HCl + MgCO3 = MgCl2 + CO2 + H2O
H2 + SO4 + Al(OH)3 = Al2(SO4)3 + H2O =>
3 H2 + 3 SO4 + 2 Al(OH)3 = Al2(SO4)3 + 6 H2O
Q5X12 + Z2 = QZ2 + X2Z =>
Q5X12 + 8 Z2 = 5 QZ2 + 6 X2Z
Mg(NO3)2 + KOH = Mg(OH)2 + KNO3 =>
Mg(NO3)2 + 2 KOH = Mg(OH)2 + 2 KNO3
K2S + Pb(NO3)2 = KNO3 + PbS =>
K2S + Pb(NO3)2 = 2 KNO3 + PbS
FeCl3(s) + H2S(g) = FeCl2(s) + HCl + S =>
2 FeCl3(s) + H2S(g) = 2 FeCl2(s) + 2 HCl + S
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
Al(s) + FeO(aq) = AlO(aq) + Fe(s) =>
Al(s) + FeO(aq) = AlO(aq) + Fe(s)
C6H12O6 = CH3CH2CH2CH2OH + H2O + CO2 =>
C6H12O6 = CH3CH2CH2CH2OH + H2O + 2 CO2
NH4Cl(aq) + AgNO3(aq) = AgCl(s) + NH4NO3(aq) =>
NH4Cl(aq) + AgNO3(aq) = AgCl(s) + NH4NO3(aq)
Fe(NO3)3 + K2S + H2O = Fe(OH)3 + KNO3 + H2S =>
2 Fe(NO3)3 + 3 K2S + 6 H2O = 2 Fe(OH)3 + 6 KNO3 + 3 H2S
KClO3 + H3PO3 = H3PO4 + KCl =>
KClO3 + 3 H3PO3 = 3 H3PO4 + KCl
Mn(s) + CuCl(aq) = Cu(s) + MnCl2(aq) =>
Mn(s) + 2 CuCl(aq) = 2 Cu(s) + MnCl2(aq)
H3 + NaOH = Na + H3O =>
2 H3 + 3 NaOH = 3 Na + 3 H3O
CO2 + C4H6O3 + C8H15N = C17H21NO4 + O2 =>
10 CO2 + 2 C4H6O3 + 2 C8H15N = 2 C17H21NO4 + 9 O2
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
Br + SCl = Cl + SBr =>
Br + SCl = Cl + SBr
IO3{-} + HSO3{-} = SO4{2-} + I2 + HSO4{-} + H2O =>
2 IO3{-} + 5 HSO3{-} = 2 SO4{2-} + I2 + 3 HSO4{-} + H2O
H2SO4 + K2HPO4 = H3PO4 + K2SO4 =>
H2SO4 + K2HPO4 = H3PO4 + K2SO4
Mn2O3 + NaNO3 + Na2CO3 = Na2MnO4 + CO2 + N2 =>
5 Mn2O3 + 6 NaNO3 + 7 Na2CO3 = 10 Na2MnO4 + 7 CO2 + 3 N2
H2SO3 + NaOH = NaSO3 + H2OH =>
H2SO3 + NaOH = NaSO3 + H2OH
Ba + (H3PO4) = Ba3(PO4)2 + H2 =>
3 Ba + 2(H3PO4) = Ba3(PO4)2 + 3 H2
Fe + C2H4O2 = Fe(C2H3O2)2 + H2 =>
Fe + 2 C2H4O2 = Fe(C2H3O2)2 + H2
H4P2O7 + Ca(OH)2 = Ca2(P2O7) + H2O =>
H4P2O7 + 2 Ca(OH)2 = Ca2(P2O7) + 4 H2O
Mg + HCl(aq) = MgClH =>
Mg + HCl(aq) = MgClH
Al + NaNO3 + KOH + H2O = NaAlO2 + KAlO2 + NH3 =>
8 Al + 3 NaNO3 + 5 KOH + 2 H2O = 3 NaAlO2 + 5 KAlO2 + 3 NH3
(NH4)2MoO4 + HNO3 = H2MoO4 + NH4NO3 =>
(NH4)2MoO4 + 2 HNO3 = H2MoO4 + 2 NH4NO3
CH3CH2Br + Br2 = CH3CHBr2 + HBr =>
CH3CH2Br + Br2 = CH3CHBr2 + HBr
H2SO4 + Pb(OH)4 = Pb(SO4)2 + H2O =>
2 H2SO4 + Pb(OH)4 = Pb(SO4)2 + 4 H2O
LiOH + H2O = LiOH2 + OH =>
LiOH + H2O = LiOH2 + OH
Na2Cr2O7 + PbO = PbCrO4 + Na2O =>
Na2Cr2O7 + 2 PbO = 2 PbCrO4 + Na2O
KI + O3 + H2SO4 = I2 + H2O + K2SO4 =>
6 KI + O3 + 3 H2SO4 = 3 I2 + 3 H2O + 3 K2SO4
Fe(NO3)3 + NH4OH = Fe(OH)3 + NH3 + HNO3 =>
Fe(NO3)3 + 3 NH4OH = Fe(OH)3 + 3 NH3 + 3 HNO3
BaNO3 = Ba + N2 + O2 =>
2 BaNO3 = 2 Ba + N2 + 3 O2
Cu2S + NH4OH = CuOH + (NH4)2S =>
Cu2S + 2 NH4OH = 2 CuOH + (NH4)2S
ZnO + CaCO3 = ZnCO3 + CaO =>
ZnO + CaCO3 = ZnCO3 + CaO
Fe + SnCl4 = FeCl3 + Sn =>
4 Fe + 3 SnCl4 = 4 FeCl3 + 3 Sn
HClH2OHCOONa = NaClH3OHCOO =>
HClH2OHCOONa = NaClH3OHCOO
Al + F2 = Al(F)3 =>
2 Al + 3 F2 = 2 Al(F)3
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