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2 Fe(OH)2 + 2 Br2 = 4 HBr + Fe2O4
NO2 + H2O = HNO3 + NO =>
3 NO2 + H2O = 2 HNO3 + NO
NH4NO3 + H2O2 = NO2 + H2O =>
NH4NO3 + 3 H2O2 = 2 NO2 + 5 H2O
FeCl3 + NaOH = Fe(OH)3 + NaCl =>
FeCl3 + 3 NaOH = Fe(OH)3 + 3 NaCl
Ca(OH)2 + H2SO4 = CaSO4 + H2O =>
Ca(OH)2 + H2SO4 = CaSO4 + 2 H2O
CaO + HCl = CaCl2 + H2O =>
CaO + 2 HCl = CaCl2 + H2O
Sb2O3 + C = Sb + CO =>
Sb2O3 + 3 C = 2 Sb + 3 CO
Bi2O3 + C2 = Bi + CO =>
2 Bi2O3 + 3 C2 = 4 Bi + 6 CO
C7H8O2 + NaOH = C7H7O2 + Na + H2O =>
C7H8O2 + NaOH = C7H7O2 + Na + H2O
KMnO4 + Li2SO3 = KMnO3 + Li2SO4 =>
KMnO4 + Li2SO3 = KMnO3 + Li2SO4
CH3CH2COH + KMnO4 + H2SO4 = CH3CH2COOH + K2SO4 + MnSO4 + H2O =>
5 CH3CH2COH + 2 KMnO4 + 3 H2SO4 = 5 CH3CH2COOH + K2SO4 + 2 MnSO4 + 3 H2O
HBF4 + H2O = H3BO3 + HF =>
HBF4 + 3 H2O = H3BO3 + 4 HF
Na2O2 + H2O = NaOH + O2 =>
2 Na2O2 + 2 H2O = 4 NaOH + O2
Fe + S = FeS =>
Fe + S = FeS
CoCl2*6H20 + NH4Cl + NH4OH = (Co(NH3)6)Cl3 + H2O + H =>
CoCl2*6H20 + NH4Cl + 5 NH4OH = (Co(NH3)6)Cl3 + 5 H2O + 121 H
Mg + FeSO4 = MgSO4 + Fe =>
Mg + FeSO4 = MgSO4 + Fe
Sr + O2 = SrO =>
2 Sr + O2 = 2 SrO
PhCH3 + KMnO4 + H2SO4 = PhCOOH + K2SO4 + MnSO4 + H2O =>
5 PhCH3 + 6 KMnO4 + 9 H2SO4 = 5 PhCOOH + 3 K2SO4 + 6 MnSO4 + 14 H2O
I + HOH = IOH + H =>
I + HOH = IOH + H
Pb(NO3)2 + (NH4)3PO4 = Pb3(PO4)2 + NH4NO3 =>
3 Pb(NO3)2 + 2(NH4)3PO4 = Pb3(PO4)2 + 6 NH4NO3
MgBr2 + O = MgO + Br2 =>
MgBr2 + O = MgO + Br2
BaCl2 + K2SO4 = KCl + BaSO4 =>
BaCl2 + K2SO4 = 2 KCl + BaSO4
C6H12O6 + O2 = CO2 + H2O =>
C6H12O6 + 6 O2 = 6 CO2 + 6 H2O
NaNO3 = NaNO2 + O2 =>
2 NaNO3 = 2 NaNO2 + O2
C6H6O2 + FeCl3 = Fe(O2C6H5)3 + HCl =>
3 C6H6O2 + FeCl3 = Fe(O2C6H5)3 + 3 HCl
CH4 + Br2 = CBr4 + HBr =>
CH4 + 4 Br2 = CBr4 + 4 HBr
Li3P + NH4NO3 = LiNO3 + (NH4)3P =>
Li3P + 3 NH4NO3 = 3 LiNO3 + (NH4)3P
HNO3(aq)NH4Cl(aq) = HCl(aq)NH4NO3(aq) =>
HNO3(aq)NH4Cl(aq) = HCl(aq)NH4NO3(aq)
Zn + S = ZnS =>
Zn + S = ZnS
Fe2(SO4)3 + KSCN = K3Fe(SCN)6 + K2SO4 =>
Fe2(SO4)3 + 12 KSCN = 2 K3Fe(SCN)6 + 3 K2SO4
Mg(s) + HCl(aq) = H2(g) + MgCl2(aq) =>
Mg(s) + 2 HCl(aq) = H2(g) + MgCl2(aq)
Cu + HCl = CuCl2 + H2 =>
Cu + 2 HCl = CuCl2 + H2
CH3CH2OH(aq) + O2(g) = H2O(l) + CH3COOH(aq) =>
CH3CH2OH(aq) + O2(g) = H2O(l) + CH3COOH(aq)
Cu + HCl = CuCl2 + H2 =>
Cu + 2 HCl = CuCl2 + H2
KNO3 = KNO2 + O2 =>
2 KNO3 = 2 KNO2 + O2
PCl3 = P4 + Cl2 =>
4 PCl3 = P4 + 6 Cl2
Fe + S = Fe2S3 =>
2 Fe + 3 S = Fe2S3
FeO3(s) + CO(g) = Fe(l) + CO2(g) =>
FeO3(s) + 3 CO(g) = Fe(l) + 3 CO2(g)
Zn + H2SO4 = ZnSO4 + H2 =>
Zn + H2SO4 = ZnSO4 + H2
FeBr3 + K3PO4 = FePO4 + KBr =>
FeBr3 + K3PO4 = FePO4 + 3 KBr
C2H4O2 + O2 = CO2 + H2O =>
C2H4O2 + 2 O2 = 2 CO2 + 2 H2O
NH3 + HCl = NH4Cl =>
NH3 + HCl = NH4Cl
P2O5 + H2O = H3PO4 =>
P2O5 + 3 H2O = 2 H3PO4
Zn + AgCl = ZnCl2 + Ag =>
Zn + 2 AgCl = ZnCl2 + 2 Ag
BaO + H3PO4 = Ba2(HPO4)2 + H2O =>
2 BaO + 2 H3PO4 = Ba2(HPO4)2 + 2 H2O
Na + F = NaF =>
Na + F = NaF
Au + HNO3 + HCl = HAuCl4 + NO + H2O =>
Au + HNO3 + 4 HCl = HAuCl4 + NO + 2 H2O
K + H2O = KOH + H2 =>
2 K + 2 H2O = 2 KOH + H2
Mg(OH)2 + HCl = MgCl2 + H2O =>
Mg(OH)2 + 2 HCl = MgCl2 + 2 H2O
H2O(l) + Ca(NO3)2(s) + (NH4)2HPO4(s) + NH3(aq) = Ca10[PO4]6(OH)2(s) + NH4NO3(aq) =>
2 H2O(l) + 10 Ca(NO3)2(s) + 6(NH4)2HPO4(s) + 8 NH3(aq) = Ca10[PO4]6(OH)2(s) + 20 NH4NO3(aq)
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