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8 H{+} + Cr2O7{2-} + 3 H2S = 2 Cr{3+} + 3 S + 7 H2O
NaCl + H2SO4 = Na2SO4 + HCl =>
2 NaCl + H2SO4 = Na2SO4 + 2 HCl
FeO + H2O2 = Fe2O2(OH)2 =>
2 FeO + H2O2 = Fe2O2(OH)2
CH3CH2OH + O2(g) = CO2 + H2O =>
CH3CH2OH + 3 O2(g) = 2 CO2 + 3 H2O
V2O5 + HF = VF5 + H2O =>
V2O5 + 10 HF = 2 VF5 + 5 H2O
Al + Cu2{+} = Al3{+} + Cu(s) =>
3 Al + Cu2{+} = Al3{+} + 2 Cu(s)
CuI2 + Br = CuBr2 + I =>
CuI2 + 2 Br = CuBr2 + 2 I
W + S = WS2 =>
W + 2 S = WS2
Ca(OH)2 + H2SO4 = CaSO4 + H2O =>
Ca(OH)2 + H2SO4 = CaSO4 + 2 H2O
C5H12 + O2 = CO2 + H2O =>
C5H12 + 8 O2 = 5 CO2 + 6 H2O
Ag2O + H = Ag + H2O =>
Ag2O + 2 H = 2 Ag + H2O
CuSO4 + Fe = Fe2(SO4)3 + Cu =>
3 CuSO4 + 2 Fe = Fe2(SO4)3 + 3 Cu
H3P1O4 + H1Cl1 = P1Cl5 + H2O1 =>
H3P1O4 + 5 H1Cl1 = P1Cl5 + 4 H2O1
Mg(OH)2 + HCl = H2O + MgCl2 =>
Mg(OH)2 + 2 HCl = 2 H2O + MgCl2
Mg + H2SO4 = MgSO4 + H2 =>
Mg + H2SO4 = MgSO4 + H2
NaClO3 + NaI + H2SO4 = NaCl + I2 + Na2SO4 + H2O =>
NaClO3 + 6 NaI + 3 H2SO4 = NaCl + 3 I2 + 3 Na2SO4 + 3 H2O
FeS2 + Al2O3 + O2 = Al2(SO4)3 + FeSO4 =>
6 FeS2 + 2 Al2O3 + 21 O2 = 2 Al2(SO4)3 + 6 FeSO4
Na2O + H2O = NaOH =>
Na2O + H2O = 2 NaOH
C2H6(g) + O2(g) = CO2(g) + H2O(g) =>
2 C2H6(g) + 7 O2(g) = 4 CO2(g) + 6 H2O(g)
Co2O2 + C = Co + CO2 =>
Co2O2 + C = 2 Co + CO2
C2H4Br + Br2 = C2H3Br3 + HBr =>
2 C2H4Br + 3 Br2 = 2 C2H3Br3 + 2 HBr
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
CO2 + H2O = C6H12O6 + O2 =>
6 CO2 + 6 H2O = C6H12O6 + 6 O2
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
Ag(s) + Au(NO3)2(aq) = AgNO3(aq) + Au(s) =>
2 Ag(s) + Au(NO3)2(aq) = 2 AgNO3(aq) + Au(s)
H2SO4 + NaNO2 = HNO2 + Na2SO4 =>
H2SO4 + 2 NaNO2 = 2 HNO2 + Na2SO4
Ca(OH) + SO4 = Ca(SO4) + H2O2 =>
2 Ca(OH) + 2 SO4 = 2 Ca(SO4) + H2O2
Fe + Al2O3 = Fe2O3 + Al =>
2 Fe + Al2O3 = Fe2O3 + 2 Al
C2H6O + KMnO4 = C2H3O2K + MnO2 + KOH + H2O =>
3 C2H6O + 4 KMnO4 = 3 C2H3O2K + 4 MnO2 + KOH + 4 H2O
K2S + H2S = KHS =>
K2S + H2S = 2 KHS
Al + NaOH = Na3AlO3 + H2 =>
2 Al + 6 NaOH = 2 Na3AlO3 + 3 H2
Fe + Pb(NO3)2 = PbFe + (NO3)2 =>
Fe + Pb(NO3)2 = PbFe + (NO3)2
HBrO2 + Na(OH) = Na(BrO2) + H2O =>
HBrO2 + Na(OH) = Na(BrO2) + H2O
KOH + HBr = KBr + H2O =>
KOH + HBr = KBr + H2O
Fe2O3 + CO = Fe + CO2 =>
Fe2O3 + 3 CO = 2 Fe + 3 CO2
Al2O3 + Ca3P2 = Al2P2 + Ca3O3 =>
Al2O3 + Ca3P2 = Al2P2 + Ca3O3
Co3P2 = Co + P4 =>
2 Co3P2 = 6 Co + P4
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
HIO + NH4OH = NH4IO + H2O =>
HIO + NH4OH = NH4IO + H2O
Zn(s) + Pb(NO3)2(aq) = Pb(s) + Zn(NO3)2(aq) =>
Zn(s) + Pb(NO3)2(aq) = Pb(s) + Zn(NO3)2(aq)
CoCl2*6(H2O) + NH4Cl + NH4OH + H2O2 = [Co(NH3)6]Cl3 + H2O =>
2 CoCl2*6(H2O) + 2 NH4Cl + 10 NH4OH + H2O2 = 2[Co(NH3)6]Cl3 + 24 H2O
Ag2O = Ag + O2 =>
2 Ag2O = 4 Ag + O2
Li2CO3 + CoO + O2 = LiCoO2 + CO2 =>
2 Li2CO3 + 4 CoO + O2 = 4 LiCoO2 + 2 CO2
NH4 + O = NO + H2O =>
NH4 + 3 O = NO + 2 H2O
Al(NO3)3 + NaOH = Al(OH)3 + NaNO3 =>
Al(NO3)3 + 3 NaOH = Al(OH)3 + 3 NaNO3
CO2 + H2O = C6H12O6 + O2 =>
6 CO2 + 6 H2O = C6H12O6 + 6 O2
ZnS + H2Br2 = ZnBr2 + H2S =>
ZnS + H2Br2 = ZnBr2 + H2S
KI + MnO2 + H2SO4 = I + MnSO4 + K2SO4 + H2O =>
2 KI + MnO2 + 2 H2SO4 = 2 I + MnSO4 + K2SO4 + 2 H2O
Rb2S + SrBr2 = RbBr + SrS =>
Rb2S + SrBr2 = 2 RbBr + SrS
FeCl3 + NaOH = Fe(OH)3 + NaCl =>
FeCl3 + 3 NaOH = Fe(OH)3 + 3 NaCl
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