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2 HCN + 2 Cu = 2 CuCN + H2
P + H2SO4 = H3PO4 + SO2 + H2 =>
2 P + 4 H2SO4 = 2 H3PO4 + 4 SO2 + H2
HOH = H2 + OH =>
2 HOH = H2 + 2 OH
Pb(OH)2 + CuSO4 = PbSO4 + Cu(OH)2 =>
Pb(OH)2 + CuSO4 = PbSO4 + Cu(OH)2
Na(OH) + Mg(NO3)2 = Na(NO3)2 + Mg(OH) =>
Na(OH) + Mg(NO3)2 = Na(NO3)2 + Mg(OH)
Na3Cr(OH)6 + Br2 + NaOH = Na2CrO4 + NaBr + H2O =>
2 Na3Cr(OH)6 + 3 Br2 + 4 NaOH = 2 Na2CrO4 + 6 NaBr + 8 H2O
NaAc + H2 = Ac + NaH30 =>
NaAc + 15 H2 = Ac + NaH30
SnOH2 = Sn + H2O =>
SnOH2 = Sn + H2O
HNO3(aq) + Fe(OH)3 = H2O + Fe(NO3)3 =>
3 HNO3(aq) + Fe(OH)3 = 3 H2O + Fe(NO3)3
H2SO4 + Cu(OH)2 = CuSO4 + H2O =>
H2SO4 + Cu(OH)2 = CuSO4 + 2 H2O
Ni2 + S2 = NiS =>
Ni2 + S2 = 2 NiS
Zn(OH)2 + HI = H2O + ZnI2 =>
Zn(OH)2 + 2 HI = 2 H2O + ZnI2
KClO3 = KCl + O2 =>
2 KClO3 = 2 KCl + 3 O2
CH3CH2Cl + Na(OH) = CH3CH2OH + NaCl =>
CH3CH2Cl + Na(OH) = CH3CH2OH + NaCl
FeCl3 + Fe(OH)2Cl = FeOHCl2 =>
FeCl3 + Fe(OH)2Cl = 2 FeOHCl2
Cr(OH)3 + Mg(OH)2 = Mg3[Cr(OH)6]2 =>
2 Cr(OH)3 + 3 Mg(OH)2 = Mg3[Cr(OH)6]2
BaS + P + Cl2 = BaCl2 + S3P2 =>
3 BaS + 2 P + 3 Cl2 = 3 BaCl2 + S3P2
I2O5 + CO = I2 + CO2 =>
I2O5 + 5 CO = I2 + 5 CO2
Si(s) + Br2(l) = SiBr4(s) =>
Si(s) + 2 Br2(l) = SiBr4(s)
NaNO3 + Al2O3 = Al(NO3)3 + Na2O =>
6 NaNO3 + Al2O3 = 2 Al(NO3)3 + 3 Na2O
Au + HNO3 + HCl = HAuCl4 + NO2 + H2O =>
Au + 3 HNO3 + 4 HCl = HAuCl4 + 3 NO2 + 3 H2O
NaCl + Al(OH)3 + H2O = Na[Al(OH)4] + HCl =>
NaCl + Al(OH)3 + H2O = Na[Al(OH)4] + HCl
FeO + Fe(OH)2 = FeOOH + FeH =>
2 FeO + 2 Fe(OH)2 = 3 FeOOH + FeH
Cl2O7 + H2 = HCl + H2O =>
Cl2O7 + 8 H2 = 2 HCl + 7 H2O
Hg + HClO3 = HgCl2 + Hg(ClO3)2 + H2O =>
6 Hg + 12 HClO3 = HgCl2 + 5 Hg(ClO3)2 + 6 H2O
C7H14O + KMnO4 + H2SO4 = C7H12O4 + K2SO4 + MnSO4 + H2O =>
5 C7H14O + 8 KMnO4 + 12 H2SO4 = 5 C7H12O4 + 4 K2SO4 + 8 MnSO4 + 17 H2O
Ba2Si + H2O = Ba(OH)2 + SiH4 =>
Ba2Si + 4 H2O = 2 Ba(OH)2 + SiH4
H2C2O4*2H2O + KMnO4 + H2SO4 = MnSO4 + K2SO4 + CO2 + H2O =>
5 H2C2O4*2H2O + 2 KMnO4 + 3 H2SO4 = 2 MnSO4 + K2SO4 + 10 CO2 + 18 H2O
Cu + HCN = CuCN + H =>
Cu + HCN = CuCN + H
KF + NaOH = KOH + NaF =>
KF + NaOH = KOH + NaF
Pb(OH)2 + CuSO4 = PbSO4 + Cu(OH)2 =>
Pb(OH)2 + CuSO4 = PbSO4 + Cu(OH)2
Mg(NO3)2 + Na(OH) = Mg(OH)2 + Na(NO3) =>
Mg(NO3)2 + 2 Na(OH) = Mg(OH)2 + 2 Na(NO3)
CuO = Cu + O2 =>
2 CuO = 2 Cu + O2
KClO3(s) + P4(s) = P4O10(s) + KCl(s) =>
10 KClO3(s) + 3 P4(s) = 3 P4O10(s) + 10 KCl(s)
(NH4)2HPO4 + CaCl2 = (NH4)3PO4 + Ca3(PO4)2 + HCl =>
6(NH4)2HPO4 + 3 CaCl2 = 4(NH4)3PO4 + Ca3(PO4)2 + 6 HCl
Na + ZnCl2 = NaCl + Zn =>
2 Na + ZnCl2 = 2 NaCl + Zn
KMnO4 = MnO4 + K2MnO2 + O2 =>
2 KMnO4 = MnO4 + K2MnO2 + O2
B2H6 + KMnO4 + H2SO4 = H3BO3 + MnSO4 + K2SO4 + H2O =>
5 B2H6 + 12 KMnO4 + 18 H2SO4 = 10 H3BO3 + 12 MnSO4 + 6 K2SO4 + 18 H2O
C6H5CH3 + Cr2O7{-2} + H{+} = C6H5COOH + Cr{+3} + H2O =>
C6H5CH3 + Cr2O7{-2} + 8 H{+} = C6H5COOH + 2 Cr{+3} + 5 H2O
Hg + HBrO3 = Hg(BrO3)2 + BrO + H2O =>
3 Hg + 8 HBrO3 = 3 Hg(BrO3)2 + 2 BrO + 4 H2O
SnF2 + Na2S = NaF + SnS =>
SnF2 + Na2S = 2 NaF + SnS
Cu + HNO3 + H2O2 = Cu(NO3)2 + H2O =>
Cu + 2 HNO3 + H2O2 = Cu(NO3)2 + 2 H2O
Cl2O7 + H2O = HClO4 =>
Cl2O7 + H2O = 2 HClO4
KNO3 + AlCl3 = Al(NO3)3 + KCl =>
3 KNO3 + AlCl3 = Al(NO3)3 + 3 KCl
Fe(CrO2)2 + KNO3 + KOH = Fe2O3 + K2CrO4 + KNO2 + H2O =>
2 Fe(CrO2)2 + 7 KNO3 + 8 KOH = Fe2O3 + 4 K2CrO4 + 7 KNO2 + 4 H2O
Al + CaOH2 = Ca + Al(OH2)3 =>
Al + 3 CaOH2 = 3 Ca + Al(OH2)3
Ca(HCO3)2 + KOH = CaCO3 + H2O + K2CO3 =>
Ca(HCO3)2 + 2 KOH = CaCO3 + 2 H2O + K2CO3
HCl(aq) + Ag(NO3)(aq) = HNO3(aq) + AgCl(s) =>
HCl(aq) + Ag(NO3)(aq) = HNO3(aq) + AgCl(s)
HCN + H2O = H3O + CN =>
HCN + H2O = H3O + CN
H2Po + K = K2Po + H2 =>
H2Po + 2 K = K2Po + H2
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