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Pb + 2 KOH + 2 H2O = K2[Pb(OH)4] + H2
N2O5 = N2O4 + O2 =>
2 N2O5 = 2 N2O4 + O2
Ag(aq) + NH3(aq)(excess) = Ag(NH3)2 =>
Ag(aq) + 2 NH3(aq)(excess) = Ag(NH3)2
PhCH3 + KMnO4 + H2SO4 = PhCOOH + K2SO4 + MnSO4 + H2O =>
5 PhCH3 + 6 KMnO4 + 9 H2SO4 = 5 PhCOOH + 3 K2SO4 + 6 MnSO4 + 14 H2O
Zn(NO3)2 + (NH4)2SO4 = ZnSO4 + NO3NH4 =>
Zn(NO3)2 + (NH4)2SO4 = ZnSO4 + 2 NO3NH4
K + Co2 = K2Co3 =>
4 K + 3 Co2 = 2 K2Co3
CH4 + O2 = C02 + OH2 =>
2 CH4 + 2 O2 = C02 + 4 OH2
Fe(s) + H2O(l) = H2(g) + Fe(OH)2(aq) =>
Fe(s) + 2 H2O(l) = H2(g) + Fe(OH)2(aq)
CH3CHCH3 + O2 = CH3CHO2CH3 =>
CH3CHCH3 + O2 = CH3CHO2CH3
Fe2O3 + NH4OH = HFeO2 + (NH4)2O =>
Fe2O3 + 2 NH4OH = 2 HFeO2 + (NH4)2O
ZnBr2 + K = KBr + Zn =>
ZnBr2 + 2 K = 2 KBr + Zn
HNO3 + KI + H2SO4 = I2 + K2SO4 + H2O + NO =>
2 HNO3 + 6 KI + 3 H2SO4 = 3 I2 + 3 K2SO4 + 4 H2O + 2 NO
CuO + NH4OH + (NH4)2SO4 = (Cu(NH3)4)SO4 + H2O =>
CuO + 2 NH4OH + (NH4)2SO4 = (Cu(NH3)4)SO4 + 3 H2O
NiS + O2 = NiO + SO3 =>
NiS + 2 O2 = NiO + SO3
P + O2 = P2O5 =>
4 P + 5 O2 = 2 P2O5
C9H20 + O20 = CO2 + H2O =>
5 C9H20 + 7 O20 = 45 CO2 + 50 H2O
Co + Ba = BaCo3 =>
3 Co + Ba = BaCo3
KOH + H3PO4 = K(PO4) + H3(OH) =>
KOH + H3PO4 = K(PO4) + H3(OH)
Cl + KClO3 = KCl + ClO =>
3 Cl + KClO3 = KCl + 3 ClO
Al + Cl2 = Al5Cl3 =>
10 Al + 3 Cl2 = 2 Al5Cl3
HCr + H2SO4 = CrSO4 + H2 =>
2 HCr + 2 H2SO4 = 2 CrSO4 + 3 H2
Ca3(PO4)2 + SiO2 + C = CaSiO3 + P2 + CO =>
Ca3(PO4)2 + 3 SiO2 + 5 C = 3 CaSiO3 + P2 + 5 CO
As2S3(s) + HNO3(aq) + H2O(l) = H3AsO4(aq) + NO(g) + S(s) =>
3 As2S3(s) + 10 HNO3(aq) + 4 H2O(l) = 6 H3AsO4(aq) + 10 NO(g) + 9 S(s)
NaHSO3 + HClO = NaHSO4 + HCl =>
NaHSO3 + HClO = NaHSO4 + HCl
C3H7OH + KMnO4 + H2SO4 = CH3COCH3 + K2SO4 + MnSO4 + H2O =>
5 C3H7OH + 2 KMnO4 + 3 H2SO4 = 5 CH3COCH3 + K2SO4 + 2 MnSO4 + 8 H2O
Li2O + SiO2 = Si6Li12O6 + O2 =>
6 Li2O + 6 SiO2 = Si6Li12O6 + 6 O2
H2S + SO2 = S + H2O =>
2 H2S + SO2 = 3 S + 2 H2O
I2 + KClO3 + H2O = KHI(O3)2 + Cl2 + KCl =>
3 I2 + 11 KClO3 + 3 H2O = 6 KHI(O3)2 + 3 Cl2 + 5 KCl
C5H11OH + C7H6O3 = H2O + C6H5OCOOC5H11 =>
C5H11OH + C7H6O3 = H2O + C6H5OCOOC5H11
Na(OH) + Mg(ClO4)2 = MgOH + Na(ClO4)2 =>
Na(OH) + Mg(ClO4)2 = MgOH + Na(ClO4)2
HCN + Ba(OH)2 = H2O + Ba(CN)2 =>
2 HCN + Ba(OH)2 = 2 H2O + Ba(CN)2
N + PO4 = N3(PO4)4 =>
3 N + 4 PO4 = N3(PO4)4
Bi(NO3)3 + Na2S = Bi2S3 + NaNO3 =>
2 Bi(NO3)3 + 3 Na2S = Bi2S3 + 6 NaNO3
NaOH + H2O3 = NaO3 + H2O =>
4 NaOH + 5 H2O3 = 4 NaO3 + 7 H2O
CuSO4 + NaOH = Cu(OH)2 + Na2SO4 =>
CuSO4 + 2 NaOH = Cu(OH)2 + Na2SO4
Mg + O2 = MgO2(s) =>
Mg + O2 = MgO2(s)
Mo + HF + HNO3 = HMoF7 + NO + H2O =>
Mo + 7 HF + 2 HNO3 = HMoF7 + 2 NO + 4 H2O
Fe3O4 + HNO3 = Fe + NO3 + H2O =>
Fe3O4 + 8 HNO3 = 3 Fe + 8 NO3 + 4 H2O
NiS + O2 = Ni + SO3 =>
2 NiS + 3 O2 = 2 Ni + 2 SO3
Na2SO3 + HCl + KIO3 = Na2SO4 + I2 + KCl + H2O =>
5 Na2SO3 + 2 HCl + 2 KIO3 = 5 Na2SO4 + I2 + 2 KCl + H2O
C17H14O + H = C17H16O =>
C17H14O + 2 H = C17H16O
Cu + FeSO4 = CuSO4 + Fe =>
Cu + FeSO4 = CuSO4 + Fe
Cd(OH)2 + NH4Cl = [Cd(NH3)4]Cl2 + HCl + H2O =>
Cd(OH)2 + 4 NH4Cl = [Cd(NH3)4]Cl2 + 2 HCl + 2 H2O
C17H14O + H = C17H16O =>
C17H14O + 2 H = C17H16O
KMnO4 + C6H12O6 = CO2 + Mn0 + K2CO3 + H2O =>
24 KMnO4 + 7 C6H12O6 = 30 CO2 + 24 Mn0 + 12 K2CO3 + 42 H2O
C2H4 + O2 = CO2 + H2O =>
C2H4 + 3 O2 = 2 CO2 + 2 H2O
As2O3(s) + KI(aq) + HCI(aq) = AsI3(s) + KCI(aq) + H2O(l) =>
As2O3(s) + 6 KI(aq) + 6 HCI(aq) = 2 AsI3(s) + 6 KCI(aq) + 3 H2O(l)
SO2 + H2SiO3 = H2SO3 + SiO2 =>
SO2 + H2SiO3 = H2SO3 + SiO2
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
NO2 + P = P2O3 + N2 =>
6 NO2 + 8 P = 4 P2O3 + 3 N2
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