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2 ZnS + 3 O2 = 2 ZnO + 2 SO2
(NH4)2S + Li2O = Li2S + (NH4)2O =>
(NH4)2S + Li2O = Li2S + (NH4)2O
BaS + O2 = BaSO4 =>
BaS + 2 O2 = BaSO4
Zn + Al3{+} = Zn2{+} + Al =>
2 Zn + Al3{+} = Zn2{+} + 3 Al
NaCIO = NaCI + NaCIO3 =>
3 NaCIO = 2 NaCI + NaCIO3
Zn(s) + I2(s) = ZnI2(s) =>
Zn(s) + I2(s) = ZnI2(s)
Fe2(SO4)3 + LiOH = Fe(OH)3 + Li2SO4 =>
Fe2(SO4)3 + 6 LiOH = 2 Fe(OH)3 + 3 Li2SO4
NH4HSO4 = H2 + (NH4)2S2O8 =>
2 NH4HSO4 = H2 + (NH4)2S2O8
Cr2O3 + Zn(OH)2 + O2 = (ZnOH)2CrO4 + H2O =>
2 Cr2O3 + 8 Zn(OH)2 + 3 O2 = 4(ZnOH)2CrO4 + 4 H2O
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
NaCl + H2O = NaOH + Cl2 + H2 =>
2 NaCl + 2 H2O = 2 NaOH + Cl2 + H2
NaN3(aq) + AgNO3(aq) = AgN3(s) + NaNO3(aq) =>
NaN3(aq) + AgNO3(aq) = AgN3(s) + NaNO3(aq)
Pb(NO3)2 + NH4Br = PbBr2 + NH4NO3 =>
Pb(NO3)2 + 2 NH4Br = PbBr2 + 2 NH4NO3
CH3Cl + CuO = CuCl2 + (CH3)2O =>
2 CH3Cl + CuO = CuCl2 + (CH3)2O
C6H4CH3NO2 + KMnO4 + H2SO4 = C6H4COOHNO2 + K2SO4 + MnSO4 + H2O =>
5 C6H4CH3NO2 + 6 KMnO4 + 9 H2SO4 = 5 C6H4COOHNO2 + 3 K2SO4 + 6 MnSO4 + 14 H2O
C6H6 + Cl2 = C6H5Cl + HCl =>
C6H6 + Cl2 = C6H5Cl + HCl
HCl + (CH3)3CCH2OH = (CH3)3CCH2Cl + H2O =>
HCl + (CH3)3CCH2OH = (CH3)3CCH2Cl + H2O
SO2 + O = SO3 =>
SO2 + O = SO3
CH3OH = CH4 + CO2 + H2O =>
4 CH3OH = 3 CH4 + CO2 + 2 H2O
HBr + KOH = H2OKBr =>
HBr + KOH = H2OKBr
WO3{-} + O2 + H2O = HW6O21{5-} + OH{-} =>
12 WO3{-} + 3 O2 + 2 H2O = 2 HW6O21{5-} + 2 OH{-}
LiAlH4 + Br2 = LiBr + AlBr3 + HBr =>
LiAlH4 + 4 Br2 = LiBr + AlBr3 + 4 HBr
Ca(OH)2 + H2O2 = CaO2 + H2O =>
Ca(OH)2 + H2O2 = CaO2 + 2 H2O
NiN2O6H12O6 + ZnN2O6H12O6 + FeN3O9H18O9 + CO(NH2)2 = Ni6Zn4Fe20O40 + H2O + CO2 + N2 =>
18 NiN2O6H12O6 + 12 ZnN2O6H12O6 + 60 FeN3O9H18O9 + 200 CO(NH2)2 = 3 Ni6Zn4Fe20O40 + 1120 H2O + 200 CO2 + 320 N2
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
AgCl + NaNO2 = Na[Ag(NO2)2] + NaCl =>
AgCl + 2 NaNO2 = Na[Ag(NO2)2] + NaCl
Fe3 + Pb(NO3)2 = Fe3(NO3)2 + Pb =>
Fe3 + Pb(NO3)2 = Fe3(NO3)2 + Pb
HO2{-} + CrO2{-} = CrO4{-} + OH{-} =>
2 HO2{-} + CrO2{-} = CrO4{-} + 2 OH{-}
(Cr2O7){2-} + Fe{2+} + H{+} = Cr3{+} + Fe{3+} + H2O =>
3(Cr2O7){2-} + 34 Fe{2+} + 42 H{+} = 2 Cr3{+} + 34 Fe{3+} + 21 H2O
AgNO3(aq) + K2SO4(aq) = Ag2SO4(saq) + KNO3(aq) =>
2 AgNO3(aq) + K2SO4(aq) = Ag2SO4(saq) + 2 KNO3(aq)
COOH(CH2)4COOH + SOCl2 = SO2 + HCl + COOH(CH2)4COCl =>
COOH(CH2)4COOH + SOCl2 = SO2 + HCl + COOH(CH2)4COCl
(Ca)3(P(O)4)2 + (H)2S(O)4 = CaS(O)4 + Ca((H)2P(O)4)2 =>
(Ca)3(P(O)4)2 + 2(H)2S(O)4 = 2 CaS(O)4 + Ca((H)2P(O)4)2
P2O5 + H2O = H3PO4 =>
P2O5 + 3 H2O = 2 H3PO4
MnO2 + HNaO3S + H2SO4 = MnSO4 + H2 + NaSO4 =>
MnO2 + 2 HNaO3S + H2SO4 = MnSO4 + 2 H2 + 2 NaSO4
Na + H2SO4 = NaSO4 + H2O + SO2 =>
Na + 2 H2SO4 = NaSO4 + 2 H2O + SO2
Cr + (Ag2SO4) = Cr2(SO4)3 + Ag =>
2 Cr + 3(Ag2SO4) = Cr2(SO4)3 + 6 Ag
C4H10 + O2 = CO2 + H2O =>
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
CO2 + C + Cl2 = COCl2 =>
CO2 + C + 2 Cl2 = 2 COCl2
K4[Fe(CN)6] + AgNO3 = KNO3 + Ag4[Fe(CN)6] =>
K4[Fe(CN)6] + 4 AgNO3 = 4 KNO3 + Ag4[Fe(CN)6]
K2Cr2O7 + H2SO4 + C2H4O = Cr2(SO4)3 + K2SO2 + C2H4O2 + H2O =>
K2Cr2O7 + 4 H2SO4 + 5 C2H4O = Cr2(SO4)3 + K2SO2 + 5 C2H4O2 + 4 H2O
Li(OH) + Fe(NO3)3 = Fe(OH)3 + LiNO3 =>
3 Li(OH) + Fe(NO3)3 = Fe(OH)3 + 3 LiNO3
Mg(s) + CoCl3(aq) = MgCl2(aq) + Co(s) =>
3 Mg(s) + 2 CoCl3(aq) = 3 MgCl2(aq) + 2 Co(s)
AlCl3(aq) + K2S(aq) = KCl + Al2S3 =>
2 AlCl3(aq) + 3 K2S(aq) = 6 KCl + Al2S3
K2Cr2O7 + Ca(NO3)2 = KNO3 + CaCr2O7 =>
K2Cr2O7 + Ca(NO3)2 = 2 KNO3 + CaCr2O7
HNO3 + PB = PB(NO3)2 + H2 =>
2 HNO3 + PB = PB(NO3)2 + H2
SO2 + KMnO4 + H2O = KH2SO4 + H2SO4 + MnSO4 =>
3 SO2 + KMnO4 + 2 H2O = KH2SO4 + H2SO4 + MnSO4
FeS4 + O2 = Fe2O3 + SO2 =>
4 FeS4 + 19 O2 = 2 Fe2O3 + 16 SO2
NH4OH + KOH = H2O + KNH4 + O2 =>
2 NH4OH + 2 KOH = 2 H2O + 2 KNH4 + O2
C2H3O2{-} + SO4{2-} + H{+} = HS{-} + CO2 + H2O =>
C2H3O2{-} + SO4{2-} + 2 H{+} = HS{-} + 2 CO2 + 2 H2O
Fe2(SO4)3(aq) + CaCl2(aq) = FeCl3(aq) + CaSO4(aq) =>
Fe2(SO4)3(aq) + 3 CaCl2(aq) = 2 FeCl3(aq) + 3 CaSO4(aq)
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