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4 K + 2 HS = 2 K2S + H2
FeO + H2SO3 = FeSO4 + H2O + SO =>
FeO + 2 H2SO3 = FeSO4 + 2 H2O + SO
Fe3O4 + H2SO4 = FeSO4 + H2O + Fe2(SO4)3 =>
Fe3O4 + 4 H2SO4 = FeSO4 + 4 H2O + Fe2(SO4)3
Ga + H2SO4 = Ga(SO4)3 + H2 =>
Ga + 3 H2SO4 = Ga(SO4)3 + 3 H2
K2FeO4 + NH3 + H2O = Fe(OH)3 + N2 + KOH =>
2 K2FeO4 + 2 NH3 + 2 H2O = 2 Fe(OH)3 + N2 + 4 KOH
Fe2 + CN = Fe(CN) =>
Fe2 + 2 CN = 2 Fe(CN)
KNO2 + KMnO4 + HCl = KNO3 + MnCl + KCl + H2O =>
3 KNO2 + KMnO4 + 2 HCl = 3 KNO3 + MnCl + KCl + H2O
AgNO3 + Ni = Ag2Ni + NO3 =>
2 AgNO3 + Ni = Ag2Ni + 2 NO3
KMnSO4 + H2O2 + H2SO4 = K2SO4 + MnSO4 + H2O =>
2 KMnSO4 + H2O2 + H2SO4 = K2SO4 + 2 MnSO4 + 2 H2O
C6H14LiN + C3H9SiCl + C5H4ClN = C8H12ClNSi + LiCl + C6H12 + NH =>
24 C6H14LiN + 18 C3H9SiCl + 24 C5H4ClN = 18 C8H12ClNSi + 24 LiCl + 29 C6H12 + 30 NH
Mn{2+} + O2 + OH{-] = MnO2+H2O =>
2 Mn{2+} + O2 + 4 OH{-] = 2 MnO2+2H2O
K2CrO7 + HCl = CrCl3 + KCl + Cl2 + OH =>
K2CrO7 + 7 HCl = CrCl3 + 2 KCl + Cl2 + 7 OH
CH2OH{-}CH2OH{-}CH2OH + KOH = CH2OK{-}CH2OK{-}CH2OK + H2O =>
CH2OH{-}CH2OH{-}CH2OH + KOH = CH2OK{-}CH2OK{-}CH2OK + H2O
KClO3 + HCl = HClO3 + KCl =>
KClO3 + HCl = HClO3 + KCl
K2Co3 + Sr(NO3)2 = KNO3 + SrCo3 =>
K2Co3 + Sr(NO3)2 = 2 KNO3 + SrCo3
NH3 + SO2 + O2 + H2O = [NH4]2SO4 =>
4 NH3 + 2 SO2 + O2 + 2 H2O = 2[NH4]2SO4
Cu + Al(NO3)3 = Al + Cu(NO3) =>
3 Cu + Al(NO3)3 = Al + 3 Cu(NO3)
BaCO3 + Bi2O3 + Ru + O2 = Ba3BiRu2O9 + CO2 =>
12 BaCO3 + 2 Bi2O3 + 8 Ru + 9 O2 = 4 Ba3BiRu2O9 + 12 CO2
Ca(OH)2 + CuSO3 = CaSO3 + Cu(OH)2 =>
Ca(OH)2 + CuSO3 = CaSO3 + Cu(OH)2
SrC2O4 + CH3COOH = Sr(CH3COO)2 + H2C2O4 =>
SrC2O4 + 2 CH3COOH = Sr(CH3COO)2 + H2C2O4
HCl + MgCo3 = MgCl2 + Co2 + H2 =>
4 HCl + 2 MgCo3 = 2 MgCl2 + 3 Co2 + 2 H2
Cu + HNO3 + H2SO4 = NO2 + CuSO4 + H2O =>
Cu + 2 HNO3 + H2SO4 = 2 NO2 + CuSO4 + 2 H2O
Cs3N = Cs + N2 =>
2 Cs3N = 6 Cs + N2
HNO3 + CaOH{2} = CaNO3{2]+H2O =>
HNO3 + CaOH{2} = CaNO3{2]+H2O
P4S3 + HBr03 + H2O = H3PO4 + S + HBr =>
P4S3 + 10 HBr03 + 16 H2O = 4 H3PO4 + 3 S + 30 HBr
CaCO3 + Na4(P2O7) = Na2(CO3) + Ca2(P2O7) =>
2 CaCO3 + Na4(P2O7) = 2 Na2(CO3) + Ca2(P2O7)
KF + Ca(NO3)2 = CaF2 + KNO3 =>
2 KF + Ca(NO3)2 = CaF2 + 2 KNO3
(CO3H)2Ca = CaCO3 + H2O + CO2 =>
(CO3H)2Ca = CaCO3 + H2O + CO2
K{+} + Al{3+} + (SO4){2-} + H2O = KAl(SO4)2*12H2O =>
K{+} + Al{3+} + 2(SO4){2-} + 12 H2O = KAl(SO4)2*12H2O
KBr + NO2PO4 = KPO4 + BrNO2 =>
KBr + NO2PO4 = KPO4 + BrNO2
HCHO2 + H2O = H3O + CO2 =>
HCHO2 + 2 H2O = 2 H3O + CO2
Mg(SO4) + Al2 = Al2(SO4) + Mg =>
Mg(SO4) + Al2 = Al2(SO4) + Mg
Hg2(NO3)2 + NH3 = Hg2(NH3)2 + NO3 =>
Hg2(NO3)2 + 2 NH3 = Hg2(NH3)2 + 2 NO3
C3H6 + CO + H2 = C3H6O =>
2 C3H6 + 3 CO + 3 H2 = 3 C3H6O
FeSO3 + O2 = FeO3 + SO2 =>
FeSO3 + O2 = FeO3 + SO2
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
NO3{-} + H{+} + Pb = Pb2{+} + NO2 + H2O =>
NO3{-} + 2 H{+} + 2 Pb = Pb2{+} + NO2 + H2O
HBr + OH = Br + H2O =>
HBr + OH = Br + H2O
Fe2O3 + CO = Fe + CO2 =>
Fe2O3 + 3 CO = 2 Fe + 3 CO2
Fl + Ca = CaFl =>
Fl + Ca = CaFl
HOOCCOOH(aq) = H + O + C =>
HOOCCOOH(aq) = 2 H + 4 O + 2 C
Mn(NO3)2*6H2O = MnO2 + NO2 + H2O =>
Mn(NO3)2*6H2O = MnO2 + 2 NO2 + 6 H2O
HOOCCOOH(aq) = H + O + C =>
HOOCCOOH(aq) = 2 H + 4 O + 2 C
Cu + HNo3 = CuNo3 + H2 =>
2 Cu + 2 HNo3 = 2 CuNo3 + H2
K2FeO4 + KBr + H2SO4 = Fe2(SO4)3 + Br2 + K2SO4 + H2O =>
2 K2FeO4 + 6 KBr + 8 H2SO4 = Fe2(SO4)3 + 3 Br2 + 5 K2SO4 + 8 H2O
HOOCCOOH(aq) = H + O + C =>
HOOCCOOH(aq) = 2 H + 4 O + 2 C
CH3OH + CH3CH2CH2COOH = CH3CH2CH2COOCH3 + H2O =>
CH3OH + CH3CH2CH2COOH = CH3CH2CH2COOCH3 + H2O
CS2 + Cl3 = CCl4 + S2Cl2 =>
CS2 + 2 Cl3 = CCl4 + S2Cl2
AlCl3K2CO3 = AlCO3K2Cl3 =>
AlCl3K2CO3 = AlCO3K2Cl3
CaO + Br2 = CaBr2 + O2 =>
2 CaO + 2 Br2 = 2 CaBr2 + O2
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