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68 O = O68
Zn + HNO3 = Zn(NO3)2 + NO2 + H2O =>
Zn + 4 HNO3 = Zn(NO3)2 + 2 NO2 + 2 H2O
Cu(OH) + H2 = Cu + H2O =>
2 Cu(OH) + H2 = 2 Cu + 2 H2O
K3PO4(aq) + PbNO3(aq) = K3NO3 + PbPO4 =>
K3PO4(aq) + PbNO3(aq) = K3NO3 + PbPO4
S2O3{2-} + I2 = I{-} + S4O6 =>
2 S2O3{2-} + 2 I2 = 4 I{-} + S4O6
Fe + HC1 = FeC6 + H2 =>
Fe + 6 HC1 = FeC6 + 3 H2
Cu(OH) + H2 = Cu + H2O =>
2 Cu(OH) + H2 = 2 Cu + 2 H2O
NH3 + K = KNH2 + H2 =>
2 NH3 + 2 K = 2 KNH2 + H2
NH3 + Al(ClO3)3 = N2H4 + AlCl3 + H2O =>
18 NH3 + Al(ClO3)3 = 9 N2H4 + AlCl3 + 9 H2O
KBr + Cl2 + KOH = KCl + HBrO3 + H2O =>
KBr + 3 Cl2 + 5 KOH = 6 KCl + HBrO3 + 2 H2O
Na2O2 + HCl = NaCl + Cl2 + H2O =>
Na2O2 + 4 HCl = 2 NaCl + Cl2 + 2 H2O
BaCO3 + AlCl3 = BaCl2 + Al2(CO3)3 =>
3 BaCO3 + 2 AlCl3 = 3 BaCl2 + Al2(CO3)3
XeF2 + KOH = Xe + O2 + KF + H2O =>
2 XeF2 + 4 KOH = 2 Xe + O2 + 4 KF + 2 H2O
HNO3 + HCl = Cl2 + H2O + NO =>
2 HNO3 + 6 HCl = 3 Cl2 + 4 H2O + 2 NO
Mg(s) + Al(OH)3(aq) = Mg(OH)2(aq) + Al(s) =>
3 Mg(s) + 2 Al(OH)3(aq) = 3 Mg(OH)2(aq) + 2 Al(s)
Na2SO3 + SnCl2 + HCl = NaCl + SnCl4 + S + H2O =>
Na2SO3 + 2 SnCl2 + 6 HCl = 2 NaCl + 2 SnCl4 + S + 3 H2O
K2Cr2O7 + C2H2O4 + KC2O4H = K3[Cr(C2O4)3] + H2O + CO2 =>
K2Cr2O7 + 5 C2H2O4 + 4 KC2O4H = 2 K3[Cr(C2O4)3] + 7 H2O + 6 CO2
NH4ClO3 + CuO + NH3*3H2O = [Cu(NH3)4](ClO3)2 + H2O =>
2 NH4ClO3 + CuO + 2 NH3*3H2O = [Cu(NH3)4](ClO3)2 + 7 H2O
CH3CH(OH)COONa + NaOH = CH3CH(ONa)COONa + H2O =>
CH3CH(OH)COONa + NaOH = CH3CH(ONa)COONa + H2O
CuCO3 + H2O = Cu3(CO3)2(OH)2 + CO2 =>
3 CuCO3 + H2O = Cu3(CO3)2(OH)2 + CO2
Ca(OH)2 + SO3 = CaSO4 + H2O =>
Ca(OH)2 + SO3 = CaSO4 + H2O
Sn + CuCIO3 = Sn(CIO3)2 + Cu =>
Sn + 2 CuCIO3 = Sn(CIO3)2 + 2 Cu
CuI + H2SO4 = CuSO4 + S + I2 + H2O =>
6 CuI + 8 H2SO4 = 6 CuSO4 + 2 S + 3 I2 + 8 H2O
Cr2O3 + HBr = Cr3Br2 + H2O + Br =>
3 Cr2O3 + 18 HBr = 2 Cr3Br2 + 9 H2O + 14 Br
K2SO4 + H3PO4 = K3PO4 + H2SO4 =>
3 K2SO4 + 2 H3PO4 = 2 K3PO4 + 3 H2SO4
MgCl2 = Mg2* + Cl =>
2 MgCl2 = Mg2* + 4 Cl
NF + Si = SiF4 + N2 =>
4 NF + Si = SiF4 + 2 N2
FeSO4 + KMnO4 = KFeO4 + MnSO4 =>
FeSO4 + KMnO4 = KFeO4 + MnSO4
Cu + Ca3 = CuCa =>
3 Cu + Ca3 = 3 CuCa
KNO3 = KNO2 + O2 = KNO3 = KNO2 =>
2 KNO3 = 2 KNO2 + O2
Na2CrO4 = Na + CrO4 =>
Na2CrO4 = 2 Na + CrO4
(NH4)2Cr2O7 + HCl = CrCl3 + NH4Cl + Cl2 + H2O =>
(NH4)2Cr2O7 + 14 HCl = 2 CrCl3 + 2 NH4Cl + 3 Cl2 + 7 H2O
H2SO4 + NaOH = H2SO4Na + OH =>
H2SO4 + NaOH = H2SO4Na + OH
OC6H12O2 + O2 = CO2 + H2O =>
2 OC6H12O2 + 15 O2 = 12 CO2 + 12 H2O
Sn10 + Se3 + Te7 = Sn10Se3Te7 =>
Sn10 + Se3 + Te7 = Sn10Se3Te7
Na2CO3 + H2S = H2Na2 + SCO3 =>
Na2CO3 + H2S = H2Na2 + SCO3
NH3 + Al(ClO4)3 = N2H4 + AlCl3 + H2O =>
24 NH3 + Al(ClO4)3 = 12 N2H4 + AlCl3 + 12 H2O
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
Hg2OO = HgO =>
Hg2OO = 2 HgO
AuCl3 + HCOH + NaOH = HCOONa + NaCl + Au + H2O =>
2 AuCl3 + 3 HCOH + 9 NaOH = 3 HCOONa + 6 NaCl + 2 Au + 6 H2O
C9H16O7 + O2 = H2O + CO2 =>
2 C9H16O7 + 19 O2 = 16 H2O + 18 CO2
H2SO4 + NaNO2 = HNO2 + Na2SO4 =>
H2SO4 + 2 NaNO2 = 2 HNO2 + Na2SO4
As2O5 + H2O = H3AsO4 =>
As2O5 + 3 H2O = 2 H3AsO4
Fe3SO42 + Pb = Pb2SO42 + Fe =>
Fe3SO42 + 2 Pb = Pb2SO42 + 3 Fe
AlCl3 + Na2SO3 = NaAlO2 + SO2 + NaCl =>
AlCl3 + 2 Na2SO3 = NaAlO2 + 2 SO2 + 3 NaCl
N2 + H1 = H1N3 =>
3 N2 + 2 H1 = 2 H1N3
C2H4HCl = C2H5Cl =>
C2H4HCl = C2H5Cl
AlN + HCl = AlCl3 + H3N =>
AlN + 3 HCl = AlCl3 + H3N
H2CCO + O2 = CO2 + H2O =>
H2CCO + 2 O2 = 2 CO2 + H2O
AuClO3 + KOH = AuOH + KClO3 =>
AuClO3 + KOH = AuOH + KClO3
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