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2 CuCl + Na2S = 2 CuNa + Cl2S
H2O + P6 = H2PO2 + PH3 =>
36 H2O + 5 P6 = 18 H2PO2 + 12 PH3
Co(NO3)2 + KI = CoI + K(NO3)2 =>
Co(NO3)2 + KI = CoI + K(NO3)2
Co = Co3 =>
3 Co = Co3
K + K2Cr2O7 + H2SO4 = Cr2(SO4)3 + K2SO4 + H2O =>
6 K + K2Cr2O7 + 7 H2SO4 = Cr2(SO4)3 + 4 K2SO4 + 7 H2O
Fe + S + HNO3 = Fe2(SO4)3 + NO + H2O =>
2 Fe + 3 S + 8 HNO3 = Fe2(SO4)3 + 8 NO + 4 H2O
Fe2 + Cl2 = Fe3Cl2 =>
3 Fe2 + 2 Cl2 = 2 Fe3Cl2
CuCO3 = CuO + CO2 =>
CuCO3 = CuO + CO2
NiCl2 + NaOH = Ni(OH)2 + NaCl =>
NiCl2 + 2 NaOH = Ni(OH)2 + 2 NaCl
CO2 + S = CS2 + SO2 =>
CO2 + 3 S = CS2 + SO2
K3[Fe(SCN)6] + KF = K3[FeF6] + KSCN =>
K3[Fe(SCN)6] + 6 KF = K3[FeF6] + 6 KSCN
TeO3 + Cs2O = Cs2TeO4 =>
TeO3 + Cs2O = Cs2TeO4
FrOH + H2CO3 = Fr2CO3 + HOH =>
2 FrOH + H2CO3 = Fr2CO3 + 2 HOH
CaO + Mg(NO3)2 = Ca(NO3)2 + MgO =>
CaO + Mg(NO3)2 = Ca(NO3)2 + MgO
Al + Cr(No2)2 = Al(No2)3 + Cr =>
2 Al + 3 Cr(No2)2 = 2 Al(No2)3 + 3 Cr
CaO + Mg(NO3)2 = Ca(NO3)2 + MgO =>
CaO + Mg(NO3)2 = Ca(NO3)2 + MgO
CaCl2 + Ca3(Po4)2 = Ca(Po4) + ClCa =>
CaCl2 + Ca3(Po4)2 = 2 Ca(Po4) + 2 ClCa
S + Cl2 = Cl2S =>
S + Cl2 = Cl2S
Fe2 + Cl2 = Fe3Cl2 =>
3 Fe2 + 2 Cl2 = 2 Fe3Cl2
Ca + MnBr2 = CaBr2 + Mn =>
Ca + MnBr2 = CaBr2 + Mn
ZnOH = Zn + ZnO + H2O =>
2 ZnOH = Zn + ZnO + H2O
MnO4{-} + H{+} + Br{-}� = Mn2{+} + Br2 + H2O =>
4 MnO4{-} + 32 H{+} + 26 Br{-}� = 2 Mn2{+} + 13 Br2 + 16 H2O
CaO + Mg(NO3)2 = Ca(NO3)2 + MgO =>
CaO + Mg(NO3)2 = Ca(NO3)2 + MgO
CO(NH2)2(l) = HNCO(l) + NH3(g) = HNCO(l) = C3N3(NH2)3(l) + CO2(g) =>
CO(NH2)2(l) = HNCO(l) + NH3(g)
SO2 + Br2 + NaOH = Na2SO4 + NaBr + H2O =>
SO2 + Br2 + 4 NaOH = Na2SO4 + 2 NaBr + 2 H2O
N2 + OH = NO3 + H2O =>
N2 + 12 OH = 2 NO3 + 6 H2O
Sn(OH)2 + KCl = SnOHCl + KOH =>
Sn(OH)2 + KCl = SnOHCl + KOH
CH3COOH(aq) + NaOH(aq) = NaCH3COO(s) + H2O(l) =>
CH3COOH(aq) + NaOH(aq) = NaCH3COO(s) + H2O(l)
Zn + CuSO4 = ZnSO4 + Cu =>
Zn + CuSO4 = ZnSO4 + Cu
PbO2 + H2SO4 + MnCl2 = HMnO4 + PbSO4 + PbCl2 + H2O =>
5 PbO2 + 3 H2SO4 + 2 MnCl2 = 2 HMnO4 + 3 PbSO4 + 2 PbCl2 + 2 H2O
NH4I + C12 = NH4C1 + I2 =>
12 NH4I + C12 = 12 NH4C1 + 6 I2
Al2O3 + NaOH + H2O = Na[Al(OH)4] =>
Al2O3 + 2 NaOH + 3 H2O = 2 Na[Al(OH)4]
MgCO3 + C6H8O7 = C6H6O7Mg + H2O + CO2 =>
MgCO3 + C6H8O7 = C6H6O7Mg + H2O + CO2
H2SO3(l) + KIO3 + HCl(l) = H2SO4(l) + KCl(l) + I2(l) + H2O(l) =>
5 H2SO3(l) + 2 KIO3 + 2 HCl(l) = 5 H2SO4(l) + 2 KCl(l) + I2(l) + H2O(l)
Fe(OH)2 + Pb(OH)3 = Fe(OH)3 + Pb =>
3 Fe(OH)2 + Pb(OH)3 = 3 Fe(OH)3 + Pb
NaO + H2O = NaOH + O2 =>
4 NaO + 2 H2O = 4 NaOH + O2
K + Cl2 = KCl =>
2 K + Cl2 = 2 KCl
Zn + AgNO3 = Ag + Zn(NO3)2 =>
Zn + 2 AgNO3 = 2 Ag + Zn(NO3)2
Zn + HCl = ZnCl2 + H2 = =>
Zn + 2 HCl = ZnCl2 + H2
Sr(NO3)2 + Na2S = SrS + NaNO3 =>
Sr(NO3)2 + Na2S = SrS + 2 NaNO3
Fe + Co = FeCo =>
Fe + Co = FeCo
CuS + O2 = Cu + SO2 =>
CuS + O2 = Cu + SO2
C2H5OH + K2Cr2O7 + H2SO4 = CH3COOH + Cr2(SO4)3 + K2SO4 + H2O =>
3 C2H5OH + 2 K2Cr2O7 + 8 H2SO4 = 3 CH3COOH + 2 Cr2(SO4)3 + 2 K2SO4 + 11 H2O
H2O2 + H2SO4(aq) + KI(aq) + C6H10O5(aq) = K2SO4 + H2O + C6H10O5I2 =>
H2O2 + H2SO4(aq) + 2 KI(aq) + C6H10O5(aq) = K2SO4 + 2 H2O + C6H10O5I2
Mg + Ag{2+} = Mg{+} + Ag =>
2 Mg + Ag{2+} = 2 Mg{+} + Ag
Cr{-} + Fe{2+} = Cr{3+} + Fe =>
Cr{-} + 2 Fe{2+} = Cr{3+} + 2 Fe
Au2O3 + Al(MnO4)3 = Au(MnO4)3 + Al2O3 =>
Au2O3 + 2 Al(MnO4)3 = 2 Au(MnO4)3 + Al2O3
Cr{3+} + NaBiO3 + H{+} = Cr2O7{2-} + Bi{3+} + H2O + Na{+} =>
2 Cr{3+} + 3 NaBiO3 + 4 H{+} = Cr2O7{2-} + 3 Bi{3+} + 2 H2O + 3 Na{+}
Fe(NO3)3(aq) + H2CO3(aq) = Fe2(CO3)3(s) + HNO3(aq) =>
2 Fe(NO3)3(aq) + 3 H2CO3(aq) = Fe2(CO3)3(s) + 6 HNO3(aq)
K2Cr2O7 + Ca(NO3)2 = CaCr2O7 + K(NO3) =>
K2Cr2O7 + Ca(NO3)2 = CaCr2O7 + 2 K(NO3)
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