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FeS + PbCl2 = FeCl2 + PbS
BeCl2 + NH4OH = Be(OH)2 + NH4Cl =>
BeCl2 + 2 NH4OH = Be(OH)2 + 2 NH4Cl
SiO2 + P2O5 = Si3(PO4)4 =>
3 SiO2 + 2 P2O5 = Si3(PO4)4
Ag(NH3)2OH + H2S = Ag2S + H2O + NH3 =>
2 Ag(NH3)2OH + H2S = Ag2S + 2 H2O + 4 NH3
C4H8O + K2CrO7 + H2SO4 = CH3COOH + K2SO4 + Cr2(SO4)3 + H2O =>
3 C4H8O + 2 K2CrO7 + 5 H2SO4 = 6 CH3COOH + 2 K2SO4 + Cr2(SO4)3 + 5 H2O
FeCl2 + Al = Fe + AlCl3 =>
3 FeCl2 + 2 Al = 3 Fe + 2 AlCl3
AuS + KOH = Au(OH)2 + K2S =>
AuS + 2 KOH = Au(OH)2 + K2S
K2CrO4 + KOH + H[SnCl3] + H2O = Cr(OH)3 + K2[Sn(OH)5] + KCl =>
K2CrO4 + 13 KOH + 3 H[SnCl3] + H2O = Cr(OH)3 + 3 K2[Sn(OH)5] + 9 KCl
AlS + O2 = Al2O3 + SO2 =>
4 AlS + 7 O2 = 2 Al2O3 + 4 SO2
(b)Ca(OH)2 + Cl2 = CaCl2 + Ca(ClO)2 + H2O =>
2(b)Ca(OH)2 + 2 Cl2 = CaCl2 + Ca(ClO)2 + 2 H2O
NaHCO3 + C6H8O7 = CO2 + H2O + Na3C6H5O7 =>
3 NaHCO3 + C6H8O7 = 3 CO2 + 3 H2O + Na3C6H5O7
H2SO3 + NH3 = NH4 + SO3 =>
H2SO3 + 2 NH3 = 2 NH4 + SO3
Zn + HNO3 = Zn(NO3)2 + H2 =>
Zn + 2 HNO3 = Zn(NO3)2 + H2
Sb + Br2 = SbBr2 =>
Sb + Br2 = SbBr2
Al + FeSO4 = Al2(SO4)3 + Fe =>
2 Al + 3 FeSO4 = Al2(SO4)3 + 3 Fe
CO2H2 + O2 = CO2 + H2O =>
2 CO2H2 + O2 = 2 CO2 + 2 H2O
Cr(OH)3 + KOH = K2 + Cr(OH)6 =>
2 Cr(OH)3 + 6 KOH = 3 K2 + 2 Cr(OH)6
Na + C2 = NaC =>
2 Na + C2 = 2 NaC
V2O5 + H3 = V + H2O =>
3 V2O5 + 10 H3 = 6 V + 15 H2O
CH3OH + H2S = (CH3)2S + H2O =>
2 CH3OH + H2S = (CH3)2S + 2 H2O
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
PbCl2 + CO + H2O = CO2 + Pb + HCl =>
PbCl2 + CO + H2O = CO2 + Pb + 2 HCl
F2 + AlBr3 = Br2 + AlF3 =>
3 F2 + 2 AlBr3 = 3 Br2 + 2 AlF3
PBr3 + H2O = HBr + P2O3 =>
2 PBr3 + 3 H2O = 6 HBr + P2O3
CH3COONa + HNO3 = CH3COOH + NaNO3 =>
CH3COONa + HNO3 = CH3COOH + NaNO3
K2Cr2O4 + HCl = KCl + H2Cr2O4 =>
K2Cr2O4 + 2 HCl = 2 KCl + H2Cr2O4
NaNO3 + Ca(NO3)2 = NaCa + NO3 =>
NaNO3 + Ca(NO3)2 = NaCa + 3 NO3
Os + O2 = OsO3 =>
2 Os + 3 O2 = 2 OsO3
C20H14O4 + NaOH + HCl = NaOHC20H14O4HCl =>
C20H14O4 + NaOH + HCl = NaOHC20H14O4HCl
MnO4{-2} + C2O4{-2} + H{+} = Mn{+2} + CO2 + H2O =>
MnO4{-2} + 2 C2O4{-2} + 8 H{+} = Mn{+2} + 4 CO2 + 4 H2O
K + Br2Mg = KBr + Mg =>
2 K + Br2Mg = 2 KBr + Mg
C6H12O6(s) = C(s) + H2O(g) =>
C6H12O6(s) = 6 C(s) + 6 H2O(g)
(C2H5O)2P(O)H + RCHO = (C2H5O)2P(O)CH(OH)R =>
(C2H5O)2P(O)H + RCHO = (C2H5O)2P(O)CH(OH)R
N(OH)2 + H3PO4 = N3(PO4)2 + H2O =>
3 N(OH)2 + 2 H3PO4 = N3(PO4)2 + 6 H2O
Na2CO3H2O + CO2 = NaHCO3 =>
Na2CO3H2O + CO2 = 2 NaHCO3
SO3H2O = H2SO4 =>
SO3H2O = H2SO4
HC2O4{-} + H2O = C2O4{2-} + H3O{+} =>
HC2O4{-} + H2O = C2O4{2-} + H3O{+}
H2(SO4) + NaCN = HCN + Na2(SO4) =>
H2(SO4) + 2 NaCN = 2 HCN + Na2(SO4)
N2H4(aq) + Ag2O(s) = N2(g) + Ag(s) + H2O =>
N2H4(aq) + 2 Ag2O(s) = N2(g) + 4 Ag(s) + 2 H2O
AlI3 + HgCI2 = AlCI3 + HgI2 =>
AlI3 + HgCI2 = AlCI3 + HgI2
H2ClO4 + KOH = K2ClO4 + H2O =>
H2ClO4 + 2 KOH = K2ClO4 + 2 H2O
CaCl2 + Cs2C2O4 = CaC2O4 + CsCl =>
CaCl2 + Cs2C2O4 = CaC2O4 + 2 CsCl
N2H4(aq) + Ag2O(s) = N2(g) + Ag(s) + H2O =>
N2H4(aq) + 2 Ag2O(s) = N2(g) + 4 Ag(s) + 2 H2O
Al(s) + KOH(ac) + H2O(l) = KAl(OH)4(ac) + H2(g) =>
2 Al(s) + 2 KOH(ac) + 6 H2O(l) = 2 KAl(OH)4(ac) + 3 H2(g)
C3H10(g) + O2(g) = CO2(g) + H2O(g) =>
2 C3H10(g) + 11 O2(g) = 6 CO2(g) + 10 H2O(g)
BaSO3 + O2 = BaSO4 =>
2 BaSO3 + O2 = 2 BaSO4
CH3CH2CHO = CH3COCH3 =>
CH3CH2CHO = CH3COCH3
Cu + C5H11NO2S = C10H18CuN2O4S2 + H2 =>
Cu + 2 C5H11NO2S = C10H18CuN2O4S2 + 2 H2
Pb(CH3COO)2 + C2H5OH = Pb(OH)2 + C2H5 + COO =>
9 Pb(CH3COO)2 + 14 C2H5OH = 9 Pb(OH)2 + 24 C2H5 + 16 COO
Bi2O3 + Br2 + KOH = H2O + KBr + KBiO3 =>
Bi2O3 + 2 Br2 + 6 KOH = 3 H2O + 4 KBr + 2 KBiO3
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