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8 Fe + S8 = 8 FeS
Bk + H2SO4 = Bk2(SO4)5 + H2 =>
2 Bk + 5 H2SO4 = Bk2(SO4)5 + 5 H2
Pb(NO3)2 + K2SO4 = PbSO4 + K2(NO3)2 =>
Pb(NO3)2 + K2SO4 = PbSO4 + K2(NO3)2
CU + CO3 = CUCO3 =>
CU + CO3 = CUCO3
Na2O2 + SO3 = Na2SO3 + O2 =>
Na2O2 + SO3 = Na2SO3 + O2
CaC2 + H2O = C2H2 + Ca + O2 =>
2 CaC2 + 2 H2O = 2 C2H2 + 2 Ca + O2
NaMnO4 + FeCl2 + H2SO4 = Na2SO4 + MnSO4 + Fe2(SO4)3 + Cl2 + H2O =>
6 NaMnO4 + 10 FeCl2 + 24 H2SO4 = 3 Na2SO4 + 6 MnSO4 + 5 Fe2(SO4)3 + 10 Cl2 + 24 H2O
FeO + SO2 = Fe2O3 + S =>
4 FeO + SO2 = 2 Fe2O3 + S
FeS2 + O2 + NaOH = FeOOH + Na2SO4 + H2O =>
4 FeS2 + 15 O2 + 16 NaOH = 4 FeOOH + 8 Na2SO4 + 6 H2O
SO3 + H2O = H2SO4 =>
SO3 + H2O = H2SO4
Si + O = Si2O =>
2 Si + O = Si2O
S + NaNO3 = NaNSO3 =>
S + NaNO3 = NaNSO3
Al + CuSO4 = Al2(SO4)3 + Cu =>
2 Al + 3 CuSO4 = Al2(SO4)3 + 3 Cu
FeCl2 + K2Cr2O7 + HCl = FeCl3 + KCl + CrCl3 + H2O =>
6 FeCl2 + K2Cr2O7 + 14 HCl = 6 FeCl3 + 2 KCl + 2 CrCl3 + 7 H2O
HNO3 + KOH = KNO3 + H2O =>
HNO3 + KOH = KNO3 + H2O
Na2SO4 + BaCl2 = Na2Cl2 + Ba2(SO4)2 =>
2 Na2SO4 + 2 BaCl2 = 2 Na2Cl2 + Ba2(SO4)2
Na + MgCl2(aq) = NaCl(aq) + Mg(s) =>
2 Na + MgCl2(aq) = 2 NaCl(aq) + Mg(s)
K2CrO4 + Cl2 + KOH = KClO + KCrO2 + H2O =>
2 K2CrO4 + 3 Cl2 + 4 KOH = 6 KClO + 2 KCrO2 + 2 H2O
Zn + HCI = ZnCI + H2 =>
2 Zn + 2 HCI = 2 ZnCI + H2
MgBr2 + NaOH = NaBr + Mg(OH)2 =>
MgBr2 + 2 NaOH = 2 NaBr + Mg(OH)2
SO3 + H2O = H2SO4 =>
SO3 + H2O = H2SO4
Pb(NO3)2 + NH3 = NO3 + Pb(NH3)2 =>
Pb(NO3)2 + 2 NH3 = 2 NO3 + Pb(NH3)2
NH3 + HNO3 = NH4NO3 =>
NH3 + HNO3 = NH4NO3
KHCO3(aq) + H3PO4(aq) = CO2(g) + K3PO4(aq) + H2O(l) =>
3 KHCO3(aq) + H3PO4(aq) = 3 CO2(g) + K3PO4(aq) + 3 H2O(l)
Na + I2 = NaI =>
2 Na + I2 = 2 NaI
K2Cr2O7 + H2S + H2SO4 = Cr2(SO4)3 + H2O + K2SO4 =>
4 K2Cr2O7 + 3 H2S + 13 H2SO4 = 4 Cr2(SO4)3 + 16 H2O + 4 K2SO4
C6H6 + O2 = CO2 + H2O =>
2 C6H6 + 15 O2 = 12 CO2 + 6 H2O
HfCl3 + Al = HfCl2 + AlCl3 =>
3 HfCl3 + Al = 3 HfCl2 + AlCl3
AlCl3 + Sr(OH)2 = Al(OH)3 + SrCl2 =>
2 AlCl3 + 3 Sr(OH)2 = 2 Al(OH)3 + 3 SrCl2
Na2S + Cr2O3 = Na2O + Cr2S3 =>
3 Na2S + Cr2O3 = 3 Na2O + Cr2S3
FeBr3 + K3Po4 = FePo4 + KBr =>
FeBr3 + K3Po4 = FePo4 + 3 KBr
WO3 + H2 = W + H2O =>
WO3 + 3 H2 = W + 3 H2O
Ba(OH)2 + HCl = BaCl + O2H3 =>
Ba(OH)2 + HCl = BaCl + O2H3
Na2CO3 + Ca(OH)2 = NaOH + CaCO3 =>
Na2CO3 + Ca(OH)2 = 2 NaOH + CaCO3
CuSO4 + H3PO2 + H2O = CuH + H2SO3 + H3PO4 =>
4 CuSO4 + 5 H3PO2 + 6 H2O = 4 CuH + 4 H2SO3 + 5 H3PO4
CH3CH2OH + O2 = H2O + CH3COOH =>
CH3CH2OH + O2 = H2O + CH3COOH
CuHF = CuFH =>
CuHF = CuFH
Ca(OH)2 + CO2 = CaCO3 + H2O =>
Ca(OH)2 + CO2 = CaCO3 + H2O
SiF4 + H2O = H2SiF6 + H2SiO3 =>
3 SiF4 + 3 H2O = 2 H2SiF6 + H2SiO3
AgNO3 + MgCl2 = AgCl + Mg(NO3)2 =>
2 AgNO3 + MgCl2 = 2 AgCl + Mg(NO3)2
H2O + NO2 = NH3 + O2 =>
6 H2O + 4 NO2 = 4 NH3 + 7 O2
Pb(OH)2 + HCl = H2O + PbCl2 =>
Pb(OH)2 + 2 HCl = 2 H2O + PbCl2
IO2 + OH{-} = IO3{-} + H2O + e =>
IO2 + 2 OH{-} = IO3{-} + H2O + e
Br2 + NaOH = H2O + NaBr + NaBrO3 =>
3 Br2 + 6 NaOH = 3 H2O + 5 NaBr + NaBrO3
Fe2O3 + H2 = Fe + H2O =>
Fe2O3 + 3 H2 = 2 Fe + 3 H2O
[Cu(NH3)4]SO4*H2O + HCl(aq) = CuSO4(aq) + H2O(l) + NH4 + Cl =>
[Cu(NH3)4]SO4*H2O + 4 HCl(aq) = CuSO4(aq) + H2O(l) + 4 NH4 + 4 Cl
SO3 + H2O = H2SO4 =>
SO3 + H2O = H2SO4
C4H6O4Pb + BaCl2 = PbCl2 + C4H6BaO4 =>
C4H6O4Pb + BaCl2 = PbCl2 + C4H6BaO4
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
CaCO3 + HCOOH = H2O + CaCOOH + CO3 =>
4 CaCO3 + 3 HCOOH = H2O + 4 CaCOOH + 3 CO3
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