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2 FeCO3 + 4 H2SO4 = Fe2(SO4)3 + SO2 + 2 CO2 + 4 H2O
Pb2CO3Cl2 = Pb + COCl2 + O2 =>
Pb2CO3Cl2 = 2 Pb + COCl2 + O2
CaCl2 + Mg(OH)2 = MgCl(OH) + CaCl(OH) =>
CaCl2 + Mg(OH)2 = MgCl(OH) + CaCl(OH)
Br + HNO3 = HBrO3 + NO + H2O =>
3 Br + 5 HNO3 = 3 HBrO3 + 5 NO + H2O
CaO + HY = CaY2 + H2O =>
CaO + 2 HY = CaY2 + H2O
H2SO4 + BaCl2 = BaSO4 + HCl =>
H2SO4 + BaCl2 = BaSO4 + 2 HCl
C3H7Cl + K = C6H14 + KCl =>
2 C3H7Cl + 2 K = C6H14 + 2 KCl
CI + NaI = NaCI + I2 =>
2 CI + 2 NaI = 2 NaCI + I2
ZnCl2 + NH3*H2O = Zn(OH)2 + NH4Cl =>
ZnCl2 + 2 NH3*H2O = Zn(OH)2 + 2 NH4Cl
BaCl2 + Na2SO4 = BaSO4 + NaCl =>
BaCl2 + Na2SO4 = BaSO4 + 2 NaCl
AgNO3(aq) + NaF(aq) = AgF + NaNO3 =>
AgNO3(aq) + NaF(aq) = AgF + NaNO3
HBr + Fe = Br + FeH =>
HBr + Fe = Br + FeH
SnCl4 + Cr(NO3)3 = Sn(NO3)4 + CrCl3 =>
3 SnCl4 + 4 Cr(NO3)3 = 3 Sn(NO3)4 + 4 CrCl3
H2 = H11 =>
11 H2 = 2 H11
N2O4 + N2H4 = NO + H2O =>
2 N2O4 + N2H4 = 6 NO + 2 H2O
Sn(ClO4)4 = SnCl4 + O2 =>
Sn(ClO4)4 = SnCl4 + 8 O2
CH3CH(OH)CH2CH3 + CH3COOH = CH3COOCH2CH2CH(CH3)2 + H2O =>
5 CH3CH(OH)CH2CH3 + 4 CH3COOH = 4 CH3COOCH2CH2CH(CH3)2 + 5 H2O
NaJ + NaJO3 + H2SO4 = J2 + Na2SO4 + H2O =>
5 NaJ + NaJO3 + 3 H2SO4 = 3 J2 + 3 Na2SO4 + 3 H2O
NaClO3 + HBr = ClO2 + NaClO4 + NaBr + H2O =>
3 NaClO3 + 2 HBr = 2 ClO2 + NaClO4 + 2 NaBr + H2O
HCI + Ca(OH)2 = CaCI + H(OH)2 =>
HCI + Ca(OH)2 = CaCI + H(OH)2
Cu + Br2 = CuBr2 =>
Cu + Br2 = CuBr2
Mg + SO2 = MgO + S =>
2 Mg + SO2 = 2 MgO + S
SiO2 + Fe2O3 + Al = Al2O3 + FeSi =>
6 SiO2 + 3 Fe2O3 + 14 Al = 7 Al2O3 + 6 FeSi
Al + I = AlI3 =>
Al + 3 I = AlI3
Cu(NO3)2NH4NO3CuO = Cu(NO2)2H2O =>
Cu(NO3)2NH4NO3CuO = 2 Cu(NO2)2H2O
H3PO4 + Ga(OH)3 = GaPO4 + HOH =>
H3PO4 + Ga(OH)3 = GaPO4 + 3 HOH
C2H2 + [Cu(NH3)2]Cl = C2Cu2 + NH3 + HCl =>
C2H2 + 2[Cu(NH3)2]Cl = C2Cu2 + 4 NH3 + 2 HCl
HNO3 = NO + H2O + O2 =>
4 HNO3 = 4 NO + 2 H2O + 3 O2
CH2CHCH3 + KMnO4 + H2O = CH3COCH3 + MnO2 + KOH =>
3 CH2CHCH3 + 2 KMnO4 + H2O = 3 CH3COCH3 + 2 MnO2 + 2 KOH
[Pb(OH{-})4]{-}2 + ClO{-} + H{+} = PbO2 + Cl{-} + H2O =>
[Pb(OH{-})4]{-}2 + ClO{-} + 2 H{+} = PbO2 + Cl{-} + 3 H2O
Na2S(aq) + Pb(NO3)2(aq) = Na(NO3)(aq) + PbS(s) =>
Na2S(aq) + Pb(NO3)2(aq) = 2 Na(NO3)(aq) + PbS(s)
C2H3O2Cl + O2 = CO + H2O + Cl2 =>
4 C2H3O2Cl + 3 O2 = 8 CO + 6 H2O + 2 Cl2
FePO4 + Al2(SO4)3 = Fe2(SO4)3 + AlPO4 =>
2 FePO4 + Al2(SO4)3 = Fe2(SO4)3 + 2 AlPO4
HNO3 + NiO = H2O + Ni(NO3)2 =>
2 HNO3 + NiO = H2O + Ni(NO3)2
NaCl(aq) + I2(g) = NaI(s) + Cl(aq) =>
2 NaCl(aq) + I2(g) = 2 NaI(s) + 2 Cl(aq)
Ni + HNO3 = Ni(NO3)2 + H2O + N2O =>
4 Ni + 10 HNO3 = 4 Ni(NO3)2 + 5 H2O + N2O
Co3(AsO4)2 + FeCl3 = CoCl2 + FeAsO4 =>
Co3(AsO4)2 + 2 FeCl3 = 3 CoCl2 + 2 FeAsO4
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
Ag(NO3)(aq) + Na2(CO3)(aq) = Ag2(CO3)(s) + Na(NO3)(aq) =>
2 Ag(NO3)(aq) + Na2(CO3)(aq) = Ag2(CO3)(s) + 2 Na(NO3)(aq)
Zn(C2H3O2)2 + AgClO3 = AgC2H3O2 + Zn(ClO3)2 =>
Zn(C2H3O2)2 + 2 AgClO3 = 2 AgC2H3O2 + Zn(ClO3)2
CdCl2 + NH4NO3 = Cd(NO3)2 + NH4Cl =>
CdCl2 + 2 NH4NO3 = Cd(NO3)2 + 2 NH4Cl
HCl(aq) + Na(s) = NaCl(aq) + H2(s) =>
2 HCl(aq) + 2 Na(s) = 2 NaCl(aq) + H2(s)
Na2O2(s) + H2O(l) = NaOH(aq) + O2(g) =>
2 Na2O2(s) + 2 H2O(l) = 4 NaOH(aq) + O2(g)
MgI2 + Na(OH) = NaI + Mg(OH)2 =>
MgI2 + 2 Na(OH) = 2 NaI + Mg(OH)2
CuCN + H2O2 = CuOH + CN =>
2 CuCN + H2O2 = 2 CuOH + 2 CN
CuS2 + HNO3 = Cu(NO3)2 + NO2 + SO2 + H2O =>
CuS2 + 12 HNO3 = Cu(NO3)2 + 10 NO2 + 2 SO2 + 6 H2O
CuSO4(aq) + Na3PO4 = Cu3(PO4)2 + Na2SO4 =>
3 CuSO4(aq) + 2 Na3PO4 = Cu3(PO4)2 + 3 Na2SO4
Fe + Sn4NO3 = Fe3NO3 + Sn4 =>
3 Fe + Sn4NO3 = Fe3NO3 + Sn4
Ba + HNO3 = Ba(NO3) + N2O + H2O =>
8 Ba + 10 HNO3 = 8 Ba(NO3) + N2O + 5 H2O
(CH2)4CO + C8H8O2 = C20H21O + H2O =>
72(CH2)4CO + 25 C8H8O2 = 28 C20H21O + 94 H2O
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