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As2S3 + 10 HNO3 = 2 H3AsO4 + 2 H2O + 10 NO2 + 3 S
ZnS + HCl = ZnCl2 + H2S =>
ZnS + 2 HCl = ZnCl2 + H2S
Cu2S + HNO3 = Cu(NO3)2 + CuSO4 + NO2 + H2O =>
Cu2S + 12 HNO3 = Cu(NO3)2 + CuSO4 + 10 NO2 + 6 H2O
Fe2(SO4)3 + K2S = Fe2S3 + K2SO4 =>
Fe2(SO4)3 + 3 K2S = Fe2S3 + 3 K2SO4
Na2S(aq) + Mg(NO3)2(aq) = MgS + Na(NO3) =>
Na2S(aq) + Mg(NO3)2(aq) = MgS + 2 Na(NO3)
CuSO4*5H2O + Fe = Fe2(SO4)3 + Cu + H2O =>
3 CuSO4*5H2O + 2 Fe = Fe2(SO4)3 + 3 Cu + 15 H2O
HC1 + KHSO4 = H2SO4 + KC1 =>
HC1 + KHSO4 = H2SO4 + KC1
H2CO3 + Ca(OH)2 = CaCO3 + H2O =>
H2CO3 + Ca(OH)2 = CaCO3 + 2 H2O
MgS + FeCl3 = MgCl2 + Fe2S3 =>
3 MgS + 2 FeCl3 = 3 MgCl2 + Fe2S3
Sr + Ag3P = Ag + Sr3P2 =>
3 Sr + 2 Ag3P = 6 Ag + Sr3P2
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
(H2N)2CO + H2O = CO3{2-} + NH4{+} =>
(H2N)2CO + 2 H2O = CO3{2-} + 2 NH4{+}
C6H12O6 + H3O + HCl = C6H6OHCl + H2O =>
C6H12O6 + 4 H3O + HCl = C6H6OHCl + 9 H2O
C6H6 + O2 = CO2 + H2O =>
2 C6H6 + 15 O2 = 12 CO2 + 6 H2O
MgCl2 + Zn(NO3)2 = Mg(NO3)2 + ZnCl2 =>
MgCl2 + Zn(NO3)2 = Mg(NO3)2 + ZnCl2
Ag + Na2S = Ag2S + Na =>
2 Ag + Na2S = Ag2S + 2 Na
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
Pb + FeSO4 = PbSO4 + Fe =>
Pb + FeSO4 = PbSO4 + Fe
CaO + HCl = CaCl2 + H2O =>
CaO + 2 HCl = CaCl2 + H2O
Pb(NO3)2 + CaS = PbS + Ca(NO3)2 =>
Pb(NO3)2 + CaS = PbS + Ca(NO3)2
CuO + HCl = CuCl2 + H2O =>
CuO + 2 HCl = CuCl2 + H2O
KFeO2 + HNO3 + H2O = Fe(OH)3 + KNO3 =>
KFeO2 + HNO3 + H2O = Fe(OH)3 + KNO3
H4C2O2 + NaHCO3 = NaH3C2O2 + H2O + CO2 =>
H4C2O2 + NaHCO3 = NaH3C2O2 + H2O + CO2
K2OCu(OH)2 = K2CuO2H2O =>
K2OCu(OH)2 = K2CuO2H2O
Mn{3+} + H2O = H3O{+} + MnOH{2+} =>
Mn{3+} + 2 H2O = H3O{+} + MnOH{2+}
CO2 + H2O = C2H5OH + O2 =>
2 CO2 + 3 H2O = C2H5OH + 3 O2
Pb(NO3)2 + KCl = PbCl2 + KNO3 =>
Pb(NO3)2 + 2 KCl = PbCl2 + 2 KNO3
C4H10 + O2 = CO2 + H2O =>
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
C5H90 + O2 = CO2 + H2O =>
2 C5H90 + 55 O2 = 10 CO2 + 90 H2O
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
Ba(OH)2 + FeCl3 = BaCl2 + Fe(HO)3 =>
3 Ba(OH)2 + 2 FeCl3 = 3 BaCl2 + 2 Fe(HO)3
SnO + O2 = SnO2 =>
2 SnO + O2 = 2 SnO2
C6H12O6 + Ag2O(NH3) = Ag + C6H8O7 + NH3 + H2O =>
C6H12O6 + 3 Ag2O(NH3) = 6 Ag + C6H8O7 + 3 NH3 + 2 H2O
Pt + H3Po4 = Pt3Po4 + H2 =>
6 Pt + 2 H3Po4 = 2 Pt3Po4 + 3 H2
Al(OH)3 + MnCl2 = AlCl3 + Mn(OH)2 =>
2 Al(OH)3 + 3 MnCl2 = 2 AlCl3 + 3 Mn(OH)2
Mg + CuO = MgO + Cu =>
Mg + CuO = MgO + Cu
HI + Br = HIBr =>
HI + Br = HIBr
CrO3 + KNO3 + KOH = KCrO4 + KNO2 + H2O =>
2 CrO3 + KNO3 + 2 KOH = 2 KCrO4 + KNO2 + H2O
CuO + H2SO4 = CuSO4 + H2O =>
CuO + H2SO4 = CuSO4 + H2O
Zn + HCl = ZnCl2 + H2 = =>
Zn + 2 HCl = ZnCl2 + H2
HNO3 + MnOHNO3 = Mn(NO3)2 + H2O =>
HNO3 + MnOHNO3 = Mn(NO3)2 + H2O
C9H8O2 + HBr + H2O2 = C9H8O2Br2 + H2O =>
C9H8O2 + 2 HBr + H2O2 = C9H8O2Br2 + 2 H2O
HO + PO = H3PO4 =>
3 HO + PO = H3PO4
X2(aq) + KY(aq) = Y2(aq) + KX(aq) =>
X2(aq) + 2 KY(aq) = Y2(aq) + 2 KX(aq)
CaO + P2O5 = Ca3(PO4)2 =>
3 CaO + P2O5 = Ca3(PO4)2
Ca3(PO4)2 + H2(SO4) = Ca(SO4) + Ca(H2PO4)2 =>
Ca3(PO4)2 + 2 H2(SO4) = 2 Ca(SO4) + Ca(H2PO4)2
Cu4(NO3)8 + K6(OH)6 = KNO3 + Cu(OH)2 =>
3 Cu4(NO3)8 + 4 K6(OH)6 = 24 KNO3 + 12 Cu(OH)2
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
Cr2O2{-}7 + I{-} + H{+} = Cr3{+} + I2 + H2O =>
6 Cr2O2{-}7 + 14 I{-} + 24 H{+} = 4 Cr3{+} + 7 I2 + 12 H2O
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