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4 Fe(OH)2 + O2 = 2 Fe2O3*2H2O
K2SO4 + Pb(C2H3O2)2 = PbSO4 + C2H3O2K =>
K2SO4 + Pb(C2H3O2)2 = PbSO4 + 2 C2H3O2K
NaOH + H3PO3 = H2PO3 + Na + H2O =>
NaOH + H3PO3 = H2PO3 + Na + H2O
C8H9NO2 + O2 = CO2 + H2O + N2 =>
4 C8H9NO2 + 37 O2 = 32 CO2 + 18 H2O + 2 N2
BaCl2 + CuSO4 = BaSO4 + Cu + Cl =>
BaCl2 + CuSO4 = BaSO4 + Cu + 2 Cl
K2[HgI4] + KOH + NH4Cl = [Hg2NH2I2]I + KCl + KI + H2O =>
2 K2[HgI4] + 2 KOH + NH4Cl = [Hg2NH2I2]I + KCl + 5 KI + 2 H2O
CH3CHCH3OH + Na = CH3CHCH3ONa + H2 =>
2 CH3CHCH3OH + 2 Na = 2 CH3CHCH3ONa + H2
AgNO3 + PO4{3-} = AgPO4{3-} + NO3 =>
AgNO3 + PO4{3-} = AgPO4{3-} + NO3
PbNO3 + KI = PbKI + NO3 =>
PbNO3 + KI = PbKI + NO3
S + Fe2 = Fe2S3 =>
3 S + Fe2 = Fe2S3
C2H6 + O2 = C202 + H2O =>
202 C2H6 + 303 O2 = 2 C202 + 606 H2O
KHC4H4O6 + NaOH = NaKC4H4O6 + H2O =>
KHC4H4O6 + NaOH = NaKC4H4O6 + H2O
KMnO4 + CH3COOH + H2SO4 = CO2 + H2O + K2SO4 + MnSO =>
8 KMnO4 + 11 CH3COOH + 12 H2SO4 = 22 CO2 + 34 H2O + 4 K2SO4 + 8 MnSO
Zn + (NH4)2MoO4 + HCl = MoCl2 + ZnCl2 + NH4Cl + H2O =>
2 Zn + (NH4)2MoO4 + 8 HCl = MoCl2 + 2 ZnCl2 + 2 NH4Cl + 4 H2O
Be + H2SO3 = BeSO3 + H2 =>
Be + H2SO3 = BeSO3 + H2
PbCl4 + Al = AlCl3 + Pb =>
3 PbCl4 + 4 Al = 4 AlCl3 + 3 Pb
Zn + HNO3(concentrado) = Zn(NO3)2 + NH4NO3 + H2O =>
4 Zn + 10 HNO3(concentrado) = 4 Zn(NO3)2 + NH4NO3 + 3 H2O
CuCl2HNO3 = CuNCl2HO3 =>
CuCl2HNO3 = CuNCl2HO3
NH3 + CI = HCI + N2 =>
2 NH3 + 6 CI = 6 HCI + N2
FeCl2 + Cl2 + KOH = Fe3O4 + KCl + H2O =>
3 FeCl2 + Cl2 + 8 KOH = Fe3O4 + 8 KCl + 4 H2O
H3PO3 + KOH = H2O + K3(PO3) =>
H3PO3 + 3 KOH = 3 H2O + K3(PO3)
H202 + S02 = H2S04 =>
H202 + 202 S02 = 101 H2S04
Ca(OH)2 + H2CrO4 = H2O + Ca(CrO4) =>
Ca(OH)2 + H2CrO4 = 2 H2O + Ca(CrO4)
NaOH + Na2CO3 = NaCO3 + OHNa2 =>
NaOH + Na2CO3 = NaCO3 + OHNa2
CH3OH + KMnO4 + KOH = HCOOH + K2MnO4 + H2O =>
CH3OH + 4 KMnO4 + 4 KOH = HCOOH + 4 K2MnO4 + 3 H2O
NiSO4 + H2O = Ni + O2 + H2SO3 =>
NiSO4 + H2O = Ni + O2 + H2SO3
FeCr2O4(s) + K2CO3(aq) + O2(g) = Fe2O3(s) + K2CrO4(aq) + CO2 =>
4 FeCr2O4(s) + 8 K2CO3(aq) + 7 O2(g) = 2 Fe2O3(s) + 8 K2CrO4(aq) + 8 CO2
NO2(g) + H2O(g) = HNO3(l) + NO(g) =>
3 NO2(g) + H2O(g) = 2 HNO3(l) + NO(g)
FeCl3 + Ca(OH)2 = Fe(OH)2 + Cl2 + Ca =>
2 FeCl3 + 2 Ca(OH)2 = 2 Fe(OH)2 + 3 Cl2 + 2 Ca
CrCl3 + Na2SO3 = NaCl + Cr2(SO3)3 =>
2 CrCl3 + 3 Na2SO3 = 6 NaCl + Cr2(SO3)3
P(s) + F2(g) = PF5(s) =>
2 P(s) + 5 F2(g) = 2 PF5(s)
Mg(s) + Zn(NO3)2(aq) = Mg(NO3)2 + Zn =>
Mg(s) + Zn(NO3)2(aq) = Mg(NO3)2 + Zn
KOH + H2SO4 + MnO2 = KMnO4 + MnSO4 + H2O =>
2 KOH + 3 H2SO4 + 5 MnO2 = 2 KMnO4 + 3 MnSO4 + 4 H2O
(CH3COO)2Cu + O2 = CO2 + H2O + CuO =>
(CH3COO)2Cu + 4 O2 = 4 CO2 + 3 H2O + CuO
H2SO4BaNO3 = BaSO4H2NO3 =>
H2SO4BaNO3 = BaSO4H2NO3
Cu + AgNO3 = Cu(NO3)2 + Ag =>
Cu + 2 AgNO3 = Cu(NO3)2 + 2 Ag
NaCN + Cu(NO3)2 = NaNO3 + Cu(CN)2 =>
2 NaCN + Cu(NO3)2 = 2 NaNO3 + Cu(CN)2
Fe(OH)2 + K2CrO4 + H2O = Fe(OH)3 + KCr(OH)4 + KOH =>
3 Fe(OH)2 + K2CrO4 + 4 H2O = 3 Fe(OH)3 + KCr(OH)4 + KOH
S2O8{2-} + NO + H2O = SO4{2-} + NO3{-} + H{+} =>
3 S2O8{2-} + 2 NO + 4 H2O = 6 SO4{2-} + 2 NO3{-} + 8 H{+}
Mg(PO4)4 + Al3 = Al(PO4)3 + Mg =>
9 Mg(PO4)4 + 4 Al3 = 12 Al(PO4)3 + 9 Mg
AgBr + C6H6O2 + C2H5OH = Ag + H2O + C6H4O2C2H5Br =>
10 AgBr + 11 C6H6O2 + 7 C2H5OH = 10 Ag + 9 H2O + 10 C6H4O2C2H5Br
(NH4)2Cr2O7(k) = Cr2O3(k) + N2(d) + H2O(d) =>
(NH4)2Cr2O7(k) = Cr2O3(k) + N2(d) + 4 H2O(d)
NO4Cl + HgCH3COO = NO4CH3COO + HgCl =>
NO4Cl + HgCH3COO = NO4CH3COO + HgCl
C2H2 + O2 = CO2 + H2O =>
2 C2H2 + 5 O2 = 4 CO2 + 2 H2O
Lead + oxygen = lead(ii)oxide =>
2 Pb + O2 = 2 PbO
C2H3NaO2 + O2 = CO2 + H2O + NaOH =>
C2H3NaO2 + 2 O2 = 2 CO2 + H2O + NaOH
Fe(s) + HBr(aq) = FeBr3(aq) + H2() =>
2 Fe(s) + 6 HBr(aq) = 2 FeBr3(aq) + 3 H2()
Mg + H2SO4 = Mg2SO4 + H2O + SO2 =>
2 Mg + 2 H2SO4 = Mg2SO4 + 2 H2O + SO2
PbCl2 + K2(CrO4) = KCl + Pb(CrO4) =>
PbCl2 + K2(CrO4) = 2 KCl + Pb(CrO4)
N2 + Si = Si3N4 =>
2 N2 + 3 Si = Si3N4
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