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FeCl2 + Na2S = FeS + 2 NaCl
SnCl2 + Mg = Sn + MgCl =>
SnCl2 + 2 Mg = Sn + 2 MgCl
K2C2O4*H2O + H2C2O4*2H2O + K2Cr2O7 = K3[Cr(C2O4)3]*3H2O + H2O + CO2 =>
2 K2C2O4*H2O + 7 H2C2O4*2H2O + K2Cr2O7 = 2 K3[Cr(C2O4)3]*3H2O + 17 H2O + 6 CO2
K2Cr2O7 + Na2C2O4 = K2C2O4 + Na2Cr2O7 =>
K2Cr2O7 + Na2C2O4 = K2C2O4 + Na2Cr2O7
NO2 + S = N2 + SO2 =>
2 NO2 + 2 S = N2 + 2 SO2
H2SO4 + NaNO2 = HNO2 + Na2SO4 =>
H2SO4 + 2 NaNO2 = 2 HNO2 + Na2SO4
CaCO3 + HCl = CaCl2 + CO2 + H2O = CaCl2 + CO2 + H2O =>
CaCO3 + 2 HCl = CaCl2 + CO2 + H2O
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
Al(NO3)3 + CaBr2 = Ca(NO3)3 + AlBr2 =>
Al(NO3)3 + CaBr2 = Ca(NO3)3 + AlBr2
KCl + Br2 = Cl2 + KBr2 =>
2 KCl + 2 Br2 = Cl2 + 2 KBr2
(NH4)2Cr2O7 = Cr2O3 + N2 + H2O =>
(NH4)2Cr2O7 = Cr2O3 + N2 + 4 H2O
[Ag(NH3)2]OH + C6H5CHO = Ag + C6H5COONH4 + NH3 + H2O =>
2[Ag(NH3)2]OH + C6H5CHO = 2 Ag + C6H5COONH4 + 3 NH3 + H2O
FeCl3 + KCN = K3[Fe(CN)6] + KCl =>
FeCl3 + 6 KCN = K3[Fe(CN)6] + 3 KCl
CaCl2 + NH4OH = Ca(NH3)4Cl2 + H2O =>
CaCl2 + 4 NH4OH = Ca(NH3)4Cl2 + 4 H2O
MgCl2 + Na2(SO4) = Mg(SO4)2 + Na2Cl =>
MgCl2 + 2 Na2(SO4) = Mg(SO4)2 + 2 Na2Cl
CaCO3 + NaHCO3 + H2O = CaCO3NaHCO3H2O =>
CaCO3 + NaHCO3 + H2O = CaCO3NaHCO3H2O
(NH4)Cl + NaOH = NH3 + H2O + NaCl =>
(NH4)Cl + NaOH = NH3 + H2O + NaCl
Fe + O2 = Fe3O4 =>
3 Fe + 2 O2 = Fe3O4
Y2 + HNO3 = HYO3 + H2O + NO2 =>
Y2 + 10 HNO3 = 2 HYO3 + 4 H2O + 10 NO2
KNO3 + Mg + H2O = NH2OH + Mg(OH)2 + KOH =>
KNO3 + 3 Mg + 5 H2O = NH2OH + 3 Mg(OH)2 + KOH
Sb2S3 + H2O2 + NaOH = Na3SbO4 + Na2SO4 + H2O =>
Sb2S3 + 14 H2O2 + 12 NaOH = 2 Na3SbO4 + 3 Na2SO4 + 20 H2O
H2Se + H2O = H2 + SeO2 =>
H2Se + 2 H2O = 3 H2 + SeO2
LiNO3 + MgBr2 = LiBr + Mg(NO3)2 =>
2 LiNO3 + MgBr2 = 2 LiBr + Mg(NO3)2
Co2(SO4)3 + NaI = Na2SO4 + CoI3 =>
Co2(SO4)3 + 6 NaI = 3 Na2SO4 + 2 CoI3
Al2O3 + HCl = AlCl3 + H2O =>
Al2O3 + 6 HCl = 2 AlCl3 + 3 H2O
Mg + CO2 = MgO + C =>
2 Mg + CO2 = 2 MgO + C
H2S + NaOH = Na2S + H2O =>
H2S + 2 NaOH = Na2S + 2 H2O
Cl2 + H2SiO3 = HClO2 + Si + H2O =>
2 Cl2 + 3 H2SiO3 = 4 HClO2 + 3 Si + H2O
Ba(NO3)2(aq) + H2S(aq) = BaS(s) + HNO3(aq) =>
Ba(NO3)2(aq) + H2S(aq) = BaS(s) + 2 HNO3(aq)
CaCl2 + Na2CO3 = CaCO3 + NaCl =>
CaCl2 + Na2CO3 = CaCO3 + 2 NaCl
C6H4N2O4 + O2 = CO2 + H2O + NO2 =>
C6H4N2O4 + 7 O2 = 6 CO2 + 2 H2O + 2 NO2
K2C2O4*H2O + H2C2O4*2H2O + K2Cr2O7 = K3[Cr(C2O4)3]*3H2O + H2O + CO2 =>
2 K2C2O4*H2O + 7 H2C2O4*2H2O + K2Cr2O7 = 2 K3[Cr(C2O4)3]*3H2O + 17 H2O + 6 CO2
PbC + C = PbC2 =>
PbC + C = PbC2
Ca3P2 + H2O = Ca(OH)2 + PH3Ca(OH)2PH3 =>
Ca3P2 + 6 H2O = 2 Ca(OH)2 + PH3Ca(OH)2PH3
P + Cl2 = PCl3 =>
2 P + 3 Cl2 = 2 PCl3
CaCl2(aq) + Cs3PO4(aq) = Ca3(PO4)2(aq) + CsCl(s) =>
3 CaCl2(aq) + 2 Cs3PO4(aq) = Ca3(PO4)2(aq) + 6 CsCl(s)
ZnBr2 + H2CO3 = HBr + ZnCO3 =>
ZnBr2 + H2CO3 = 2 HBr + ZnCO3
FeCl2 + SO2 + HCl = FeCl3 + S + H2O =>
4 FeCl2 + SO2 + 4 HCl = 4 FeCl3 + S + 2 H2O
Cu + H2O = Cu6H12O6 =>
6 Cu + 6 H2O = Cu6H12O6
HNO3 + Mg = NO2 + MgNO3 + H2O =>
2 HNO3 + Mg = NO2 + MgNO3 + H2O
Ca(s) + Po4(aq) = Ca3(Po4)2(s) =>
3 Ca(s) + 2 Po4(aq) = Ca3(Po4)2(s)
CuCl2 + NaOH = NaCl + H2O + CuO =>
CuCl2 + 2 NaOH = 2 NaCl + H2O + CuO
Al + O2 + H2 = Al(OH)3 =>
2 Al + 3 O2 + 3 H2 = 2 Al(OH)3
Fe2 + CO3 = Fe2(CO3)3 =>
Fe2 + 3 CO3 = Fe2(CO3)3
Pb(NO3)2 + NaBr = PbBr2 + NaNO3 =>
Pb(NO3)2 + 2 NaBr = PbBr2 + 2 NaNO3
Mg(NO3)2(aq) + KOH(aq) = Mg(OH)2 + KNO3 =>
Mg(NO3)2(aq) + 2 KOH(aq) = Mg(OH)2 + 2 KNO3
FeS + KClO3 = KCl + Fe2O3 + SO2 =>
6 FeS + 7 KClO3 = 7 KCl + 3 Fe2O3 + 6 SO2
Mn(OH)4 = Mn2O4 + H2O =>
2 Mn(OH)4 = Mn2O4 + 4 H2O
Br2 + SO2 + H2O = HBr + H2SHO4 =>
Br2 + 2 SO2 + 4 H2O = 2 HBr + 2 H2SHO4
Mn(OH)4 = Mn2O4 + H2O =>
2 Mn(OH)4 = Mn2O4 + 4 H2O
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