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2 X{2+} + Z{2+} = 2 X{+} + Z{4+}
K4Fe(CN)6 + H2SO4 + H2O = K2SO4 + FeSO4 + (NH4)2SO4 + CO =>
K4Fe(CN)6 + 6 H2SO4 + 6 H2O = 2 K2SO4 + FeSO4 + 3(NH4)2SO4 + 6 CO
CH3OHC2H5COOH = C2H5COOCH3H2O =>
CH3OHC2H5COOH = C2H5COOCH3H2O
Ag2SO4 + NaOH + N2H4 = N2 + Na2SO4 + Ag + H2O =>
2 Ag2SO4 + 4 NaOH + N2H4 = N2 + 2 Na2SO4 + 4 Ag + 4 H2O
NH4Cl + HOH = NH4OH + HCl =>
NH4Cl + HOH = NH4OH + HCl
C3H6O + HI = C3H7OH + I2 =>
C3H6O + 2 HI = C3H7OH + I2
Cu2S + KMnO4 + H2SO4 = CuSO4 + K2SO4 + MnSO4 + H2O =>
Cu2S + 2 KMnO4 + 4 H2SO4 = 2 CuSO4 + K2SO4 + 2 MnSO4 + 4 H2O
Bl2O3 + NaOH + NaOCl = NaBlO3 + NaCl + H2O =>
Bl2O3 + 2 NaOH + 2 NaOCl = 2 NaBlO3 + 2 NaCl + H2O
KNO3 + C = KNO2 + CO2 =>
2 KNO3 + C = 2 KNO2 + CO2
Hg(NO3)2 + (NH4)2CO3 = HgCO3 + NH4NO3 =>
Hg(NO3)2 + (NH4)2CO3 = HgCO3 + 2 NH4NO3
CuSO4 + Ba(NO3)2 = BaSO4 + Cu + NO3 =>
CuSO4 + Ba(NO3)2 = BaSO4 + Cu + 2 NO3
HCl + Sr(OH)2 = SrCl + H(OH)2 =>
HCl + Sr(OH)2 = SrCl + H(OH)2
NiSO4NH4(OH) = (NiOH)2SO4(NH4)2SO4 =>
2 NiSO4NH4(OH) = (NiOH)2SO4(NH4)2SO4
PbO2 + MnO + H{+} = Pb{2+} + MnO4{-} + H2O =>
5 PbO2 + 2 MnO + 8 H{+} = 5 Pb{2+} + 2 MnO4{-} + 4 H2O
KCl + H = K + HCl =>
KCl + H = K + HCl
NaCl + K2SO4 = K2Cl + NaSO4 =>
NaCl + K2SO4 = K2Cl + NaSO4
Zn(OH)2 + KOH = K2[Zn(OH)4] =>
Zn(OH)2 + 2 KOH = K2[Zn(OH)4]
KCrO2 + Br2 + NaOH = K2CrO4 + NaBr + H2O + Na2CrO4 =>
2 KCrO2 + 3 Br2 + 8 NaOH = K2CrO4 + 6 NaBr + 4 H2O + Na2CrO4
Mg(NO3)2 + HOH = HNO3 + Mg(OH)2 =>
Mg(NO3)2 + 2 HOH = 2 HNO3 + Mg(OH)2
Pb(CIO4)2 + KI = PbI2 + KCIO4 =>
Pb(CIO4)2 + 2 KI = PbI2 + 2 KCIO4
S{-2} + ClO3{-} + H{+} = SO2 + Cl{-} + H2O =>
S{-2} + ClO3{-} + 2 H{+} = SO2 + Cl{-} + H2O
KBrO3 + KBr + CH3COOH = CH3COOK + Br2 + H2O =>
KBrO3 + 5 KBr + 6 CH3COOH = 6 CH3COOK + 3 Br2 + 3 H2O
H4P2O6 + NaOH = H2O + NaH3P2O6 =>
H4P2O6 + NaOH = H2O + NaH3P2O6
MgS + CuCl2 = CuS + MgCl2 =>
MgS + CuCl2 = CuS + MgCl2
H2O(l) + CO2(g) = C6H6(l) + O2(g) =>
6 H2O(l) + 12 CO2(g) = 2 C6H6(l) + 15 O2(g)
SO2Cl2 + H2O = H2SO4 + HCl =>
SO2Cl2 + 2 H2O = H2SO4 + 2 HCl
Al2(CO3)2 + HCl = AlCl2 + H2O + CO2 =>
Al2(CO3)2 + 4 HCl = 2 AlCl2 + 2 H2O + 2 CO2
CuO + CO2 = CuCO3 = =>
CuO + CO2 = CuCO3
NaNO2 + NaI + H2SO4 = NOI + Na2SO4 + H2O =>
NaNO2 + NaI + H2SO4 = NOI + Na2SO4 + H2O
FeBr3 + HI = FeBr2 + I2 + HBr =>
2 FeBr3 + 2 HI = 2 FeBr2 + I2 + 2 HBr
Rb + HCl = RbCl + H2 =>
2 Rb + 2 HCl = 2 RbCl + H2
Sn(OH)2NaOH = SnOHNa(OH)2 =>
Sn(OH)2NaOH = SnOHNa(OH)2
P2S5 + C18H35NH2 = P + HS + C18H35NH =>
P2S5 + 5 C18H35NH2 = 2 P + 5 HS + 5 C18H35NH
Na2SO3 + KMgO4 + H2O = Na2SO4 + MgO2 + KOH =>
3 Na2SO3 + 2 KMgO4 + H2O = 3 Na2SO4 + 2 MgO2 + 2 KOH
H8 = H3 =>
3 H8 = 8 H3
CuOHCl + NaOH = CuO + NaCl + H2O =>
CuOHCl + NaOH = CuO + NaCl + H2O
H2OI2 = I2OH2 =>
H2OI2 = I2OH2
Br2O5 + TiO2 = O2 + TiBr4 =>
2 Br2O5 + TiO2 = 6 O2 + TiBr4
CU(NO3)2 + KOH = CU(OH)2 + K(NO3) =>
CU(NO3)2 + 2 KOH = CU(OH)2 + 2 K(NO3)
K + P = K3P =>
3 K + P = K3P
SnNaOHH2O2 = NaSn(OH)3 =>
SnNaOHH2O2 = NaSn(OH)3
KI + H2SO4 + MnO2 = H2O + I2 + KHSO4 + MnSO4 =>
2 KI + 3 H2SO4 + MnO2 = 2 H2O + I2 + 2 KHSO4 + MnSO4
AgNO3 + AsH3 + H2O = Ag + As2O3 + HNO3 =>
12 AgNO3 + 2 AsH3 + 3 H2O = 12 Ag + As2O3 + 12 HNO3
BaSO4 + H2O = BaOHHSO4 =>
BaSO4 + H2O = BaOHHSO4
NH3 + Fe2O3 = N2 + H2O + Fe3O4 =>
2 NH3 + 9 Fe2O3 = N2 + 3 H2O + 6 Fe3O4
COOHCOOH + PCl5 = ClCOCOCl + HCl + P4O10 =>
5 COOHCOOH + 4 PCl5 = 5 ClCOCOCl + 10 HCl + P4O10
Na + D2O = NaOD + D2 =>
2 Na + 2 D2O = 2 NaOD + D2
Ag + H = AgH3 =>
Ag + 3 H = AgH3
CO2 + NH3 = CONH2ONH4 =>
CO2 + 2 NH3 = CONH2ONH4
Al + Na(OH) = Na3AlO3 + H2 =>
2 Al + 6 Na(OH) = 2 Na3AlO3 + 3 H2
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