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4 Fe7S8 + 21 O2 = 14 Fe2O3 + 16 S2
Zn + MgS = ZnS + Mg =>
Zn + MgS = ZnS + Mg
(NH4)HCO3 + CuO + NH3 = Cu(NH3)2CO3 + H2O =>
(NH4)HCO3 + CuO + NH3 = Cu(NH3)2CO3 + H2O
NaOH + K2S = KOH + Na2S =>
2 NaOH + K2S = 2 KOH + Na2S
SiCl4 + Na = Si + NaCl =>
SiCl4 + 4 Na = Si + 4 NaCl
Na2SO3 + KMnO4 + HCl = Na2SO4 + MnCl2 + KCl + H2 =>
8 Na2SO3 + 2 KMnO4 + 6 HCl = 8 Na2SO4 + 2 MnCl2 + 2 KCl + 3 H2
SnS + HNO3 = Sn(SO4)2 + Sn(NO3)4 + H2O + NO =>
6 SnS + 32 HNO3 = 3 Sn(SO4)2 + 3 Sn(NO3)4 + 16 H2O + 20 NO
Fe + Cu(OH)2 + H2O = Cu[Fe(OH)3] + H2 =>
2 Fe + 2 Cu(OH)2 + 2 H2O = 2 Cu[Fe(OH)3] + H2
C + FeO = Fe + CO =>
C + FeO = Fe + CO
CH3CCCH2CH3 + KMnO4 + H2O = CH3C(OH)2C(OH)2CH3 + MnO2 + KOH =>
12 CH3CCCH2CH3 + 22 KMnO4 + 38 H2O = 15 CH3C(OH)2C(OH)2CH3 + 22 MnO2 + 22 KOH
BaCl2 + KCO3 = BaCO3 + KCl2 =>
BaCl2 + KCO3 = BaCO3 + KCl2
Cl2 + Ca3P2 + H2O = CaCl2 + H3PO4 + HCl =>
8 Cl2 + Ca3P2 + 8 H2O = 3 CaCl2 + 2 H3PO4 + 10 HCl
H2SO4 + KOH = K2SO4 + H2O =>
H2SO4 + 2 KOH = K2SO4 + 2 H2O
Pb2O5 + FrCl = PbCl5 + Fr2O =>
Pb2O5 + 10 FrCl = 2 PbCl5 + 5 Fr2O
MnS + O2 + H2O = Mn(OH)4 + H2SO4 =>
2 MnS + 5 O2 + 6 H2O = 2 Mn(OH)4 + 2 H2SO4
Au + Br = AuBr3 =>
Au + 3 Br = AuBr3
Na[Al(OH)4] + H2SO4 = Al2(SO4)3 + H2O + NaOH =>
2 Na[Al(OH)4] + 3 H2SO4 = Al2(SO4)3 + 6 H2O + 2 NaOH
NH4NO3 + BaCl2 = NH4Cl2 + BaNO3 =>
NH4NO3 + BaCl2 = NH4Cl2 + BaNO3
C + Na = NaC12 =>
12 C + Na = NaC12
(C5H10)CHOH + O2 = H2O + CO2 =>
2(C5H10)CHOH + 17 O2 = 12 H2O + 12 CO2
Fe + NHO3 = Fe(NO3)3 + NO2 + H2O =>
Fe + 6 NHO3 = Fe(NO3)3 + 3 NO2 + 3 H2O
Cr + HCl = H2 + CrCl3 =>
2 Cr + 6 HCl = 3 H2 + 2 CrCl3
FeS2 + Br2 = S8 + FeBr3 =>
4 FeS2 + 6 Br2 = S8 + 4 FeBr3
LiHCO3(aq) + HI(aq) = LiI(aq) + H2O(l) + CO2(g) =>
LiHCO3(aq) + HI(aq) = LiI(aq) + H2O(l) + CO2(g)
GaBr3 + F = GaF3 + Br2 =>
2 GaBr3 + 6 F = 2 GaF3 + 3 Br2
CrCl3(aq) + Ba(OH)2(aq) = Cr(OH)3 + BaCl2 =>
2 CrCl3(aq) + 3 Ba(OH)2(aq) = 2 Cr(OH)3 + 3 BaCl2
KMnO4 + FeSO4 + H2O = MnO2 + FeOHSO4 + KOH =>
KMnO4 + 3 FeSO4 + 2 H2O = MnO2 + 3 FeOHSO4 + KOH
LiC6 = C6 + Li =>
LiC6 = C6 + Li
Na2[Co(CN)6] + H2O = Na[Co(CN)6] + NaOH + H =>
Na2[Co(CN)6] + H2O = Na[Co(CN)6] + NaOH + H
NaOH + SnCl2 = NaCl + Sn(OH)2 =>
2 NaOH + SnCl2 = 2 NaCl + Sn(OH)2
Ni{2+} + O{2-} = NiO =>
Ni{2+} + O{2-} = NiO
C6H18Al2 + H2O = Al2O3 + CH4 =>
C6H18Al2 + 3 H2O = Al2O3 + 6 CH4
CuO + H2 = Cu + H2O =>
CuO + H2 = Cu + H2O
Cr2O6 + HCl = CrCl6 + H2O =>
Cr2O6 + 12 HCl = 2 CrCl6 + 6 H2O
C17H36O2 + O2 = CO2 + H2O =>
C17H36O2 + 25 O2 = 17 CO2 + 18 H2O
MnCl2 + HF = MnF2 + HCl =>
MnCl2 + 2 HF = MnF2 + 2 HCl
HCrO2 + Ca(OH)2 = Ca(CrO2)2 + H2O =>
2 HCrO2 + Ca(OH)2 = Ca(CrO2)2 + 2 H2O
Ag2O + C2 = Ag + CO2 =>
4 Ag2O + C2 = 8 Ag + 2 CO2
Ca(OH)2 + H3PO4 = Ca + PO4 + H2O =>
3 Ca(OH)2 + 2 H3PO4 = 3 Ca + 2 PO4 + 6 H2O
Ag(s) + KNO3(aq) = AgK + NO3 =>
Ag(s) + KNO3(aq) = AgK + NO3
C17H33COOH + KMnO4 + H2SO4 = CO2 + K2SO4 + MnSO4 + H2O =>
5 C17H33COOH + 102 KMnO4 + 153 H2SO4 = 90 CO2 + 51 K2SO4 + 102 MnSO4 + 238 H2O
KBr + PbO2 + CH3COOH = (CH3COO)2Pb + Br2 + CH3COOK + H2O =>
2 KBr + PbO2 + 4 CH3COOH = (CH3COO)2Pb + Br2 + 2 CH3COOK + 2 H2O
H2O(s) + SO3(s) = H2SO4(s) =>
H2O(s) + SO3(s) = H2SO4(s)
C2H4O2 + NaOH = CH3COONa + H2O =>
C2H4O2 + NaOH = CH3COONa + H2O
Na2SO4 + H2O = NaOH + H2SO4 =>
Na2SO4 + 2 H2O = 2 NaOH + H2SO4
U + FeSO4 = USO4 + Fe =>
U + FeSO4 = USO4 + Fe
Na3Po4 + BaCl2 = NaCl + Ba3(Po4)2 =>
2 Na3Po4 + 3 BaCl2 = 6 NaCl + Ba3(Po4)2
P2O5 + Cr = P + Cr2O3 =>
3 P2O5 + 10 Cr = 6 P + 5 Cr2O3
HV5 = V8 + H =>
8 HV5 = 5 V8 + 8 H
AlCl3 + H2O = Al(OH)3 + HCl =>
AlCl3 + 3 H2O = Al(OH)3 + 3 HCl
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