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2 FeH3 = 2 Fe + 3 H2
KMnO4 + K2S + H2O = S + MnO2 + KOH =>
2 KMnO4 + 3 K2S + 4 H2O = 3 S + 2 MnO2 + 8 KOH
BH4 + H2O = H3BO3 + H2 =>
2 BH4 + 6 H2O = 2 H3BO3 + 7 H2
Fe(NO3)3 + NaOH = Fe2O3 + NaNO3 + H2O =>
2 Fe(NO3)3 + 6 NaOH = Fe2O3 + 6 NaNO3 + 3 H2O
Ni(BO3)2 + FeSO4 = NiSO4 + Fe(BO3)2 =>
Ni(BO3)2 + FeSO4 = NiSO4 + Fe(BO3)2
Co(OH)2 + Cu(OH)2 + H2 = CoCu + H2O =>
Co(OH)2 + Cu(OH)2 + 2 H2 = CoCu + 4 H2O
KMnO4 + AsBr + HClO4 = H3AsO4 + KBrO3 + Mn(ClO4)2 + KClO4 + H2O =>
2 KMnO4 + AsBr + 5 HClO4 = H3AsO4 + KBrO3 + 2 Mn(ClO4)2 + KClO4 + H2O
H2S + Cl2 + H2O = HSO4 + HCl =>
2 H2S + 9 Cl2 + 8 H2O = 2 HSO4 + 18 HCl
CH3CO2H(l) + Na2CO3(s) = CH3CO2Na(aq) + CO2(g) + H2O(l) =>
2 CH3CO2H(l) + Na2CO3(s) = 2 CH3CO2Na(aq) + CO2(g) + H2O(l)
K2S + K2MnO4 + H2O = S + MnO(OH)2 + KOH =>
K2S + K2MnO4 + 3 H2O = S + MnO(OH)2 + 4 KOH
KI + H3SO4 = I2 + S + K2SO4 + H2O =>
10 KI + 8 H3SO4 = 5 I2 + 3 S + 5 K2SO4 + 12 H2O
HBr + Ca(OH)2 = CaBr2 + OH2 =>
2 HBr + Ca(OH)2 = CaBr2 + 2 OH2
HNO3 + I2 + H2O = NO + HIO =>
2 HNO3 + 3 I2 + 2 H2O = 2 NO + 6 HIO
KMnO4 + H2SO4 + (NH4)2S = K2SO4 + Mn(SO4) + (NH4)2SO4 + H2O =>
8 KMnO4 + 12 H2SO4 + 5(NH4)2S = 4 K2SO4 + 8 Mn(SO4) + 5(NH4)2SO4 + 12 H2O
Ag2O + Br = AgBr + O2 =>
2 Ag2O + 4 Br = 4 AgBr + O2
Al(NO3)3 + NH4OH = Al(OH)3 + NH4NO3 =>
Al(NO3)3 + 3 NH4OH = Al(OH)3 + 3 NH4NO3
Cr + Ca = CrCa =>
Cr + Ca = CrCa
C6H5Br + HNO3 + H2SO4 = BrC6H4NO2 + H3O + HSO4 =>
C6H5Br + HNO3 + H2SO4 = BrC6H4NO2 + H3O + HSO4
Ca(SO4)2 + Na(CO3)2 = Ca(CO3)2 + Na(SO4)2 =>
Ca(SO4)2 + Na(CO3)2 = Ca(CO3)2 + Na(SO4)2
KOH + Zn(OH)2 = K(OH)2 + ZnOH =>
KOH + Zn(OH)2 = K(OH)2 + ZnOH
Sr + CO3 = SrCO3 =>
Sr + CO3 = SrCO3
Zn + PtNO3 = ZnNO3 + Pt =>
Zn + PtNO3 = ZnNO3 + Pt
H2O2 + NaHCO3 = H2O + NaCO4 =>
3 H2O2 + 2 NaHCO3 = 4 H2O + 2 NaCO4
H + I = HI =>
H + I = HI
Li + HI = LiI + H =>
Li + HI = LiI + H
H3PO4 + (NH4)2CO3 = H2CO3 + (NH4)3PO4 =>
2 H3PO4 + 3(NH4)2CO3 = 3 H2CO3 + 2(NH4)3PO4
FeO + H2O = FeH + O2 =>
4 FeO + 2 H2O = 4 FeH + 3 O2
CuCO2 = Cu2 + CO2 =>
2 CuCO2 = Cu2 + 2 CO2
CuSO4 + HCl = CuCl4 + H + H2SO4 =>
CuSO4 + 4 HCl = CuCl4 + 2 H + H2SO4
NaFeCl = NaCl + Fe =>
NaFeCl = NaCl + Fe
CH3NH2COOH + HNO3 = CH3CH(OH)COOH + N2 + H2O =>
30 CH3NH2COOH + 12 HNO3 = 20 CH3CH(OH)COOH + 21 N2 + 36 H2O
Al + B2 = AlB3 =>
2 Al + 3 B2 = 2 AlB3
NaOH + KPH = Na + KP + H2O =>
NaOH + KPH = Na + KP + H2O
(NH4)2CO3(aq) + NaI(aq) = (NH4)2I(aq) + NaCO3(aq) =>
(NH4)2CO3(aq) + NaI(aq) = (NH4)2I(aq) + NaCO3(aq)
CuO + HI = CuI + I2 + H2O =>
2 CuO + 4 HI = 2 CuI + I2 + 2 H2O
CO + NH3 + H2 = H2O + CH3CN =>
2 CO + NH3 + 2 H2 = 2 H2O + CH3CN
S + Cl2 = SCl6 =>
S + 3 Cl2 = SCl6
Zn + Cu = ZnCu =>
Zn + Cu = ZnCu
SiO + H2O = SiO2 + H2 =>
SiO + H2O = SiO2 + H2
Al + H3(PO)4 = Al(PO)4 + H2 =>
2 Al + 2 H3(PO)4 = 2 Al(PO)4 + 3 H2
Cr + NH3 = CrH3 + N =>
Cr + NH3 = CrH3 + N
CaO + HI = CaI + OH =>
CaO + HI = CaI + OH
NH3 + OH = NO + H2O =>
NH3 + 5 OH = NO + 4 H2O
Al(OH)3 + Ba = Ba(OH) + Al =>
Al(OH)3 + 3 Ba = 3 Ba(OH) + Al
CoCO3 + H2C2O4 = Co(C2O4) + H2O + O2 =>
4 CoCO3 + 2 H2C2O4 = 4 Co(C2O4) + 2 H2O + O2
HI(aq) + Sr(OH)2 = H2O + SrI2 =>
2 HI(aq) + Sr(OH)2 = 2 H2O + SrI2
MgSO4*7H2O + Ba(NO3)2 = BaSO4 + Mg(NO3)2 + H2O =>
MgSO4*7H2O + Ba(NO3)2 = BaSO4 + Mg(NO3)2 + 7 H2O
Cd(NO3)2 + LiOH = Cd(OH)2 + LiNO3 =>
Cd(NO3)2 + 2 LiOH = Cd(OH)2 + 2 LiNO3
C3H3N + H2O = C3H6 + NH3 + O2 =>
2 C3H3N + 6 H2O = 2 C3H6 + 2 NH3 + 3 O2
K2O + Mg = K + MgO =>
K2O + Mg = 2 K + MgO
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