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20 H2 + O2 = 2 H20O
L + O2 = L2O =>
4 L + O2 = 2 L2O
Cl2 + Pb4 = PbCl2 =>
4 Cl2 + Pb4 = 4 PbCl2
Na2CO3(aq) + Pb(NO3)2 = PbCO3 + NaNO3 =>
Na2CO3(aq) + Pb(NO3)2 = PbCO3 + 2 NaNO3
Fe2P + FeS2 = Fe2S3 + P4S10 =>
4 Fe2P + 44 FeS2 = 26 Fe2S3 + P4S10
(NH4)2SO4 + Ba3P2 = (NH4)3P + BaSO4 =>
3(NH4)2SO4 + Ba3P2 = 2(NH4)3P + 3 BaSO4
Pb(OH)2 + HCl = H2O + PbCl2 =>
Pb(OH)2 + 2 HCl = 2 H2O + PbCl2
CoI3 + H2S = Co2S3 + HI =>
2 CoI3 + 3 H2S = Co2S3 + 6 HI
Al + NaOH + H2O = Na[Al(OH)4(H2O)2] + H2 =>
2 Al + 2 NaOH + 10 H2O = 2 Na[Al(OH)4(H2O)2] + 3 H2
P4O10 + PCl5 = POCl3 =>
P4O10 + 6 PCl5 = 10 POCl3
iron(ii)oxide + oxygen = iron(iii)oxide =>
4 FeO + O2 = 2 Fe2O3
SO2(g) + O2(g) + H2O(aq) = H2SO4(aq) =>
2 SO2(g) + O2(g) + 2 H2O(aq) = 2 H2SO4(aq)
CH3Cl = C2H6 + Cl2 =>
2 CH3Cl = C2H6 + Cl2
PF5 + NaOH = Na3PO4 + NaF + H2O =>
PF5 + 8 NaOH = Na3PO4 + 5 NaF + 4 H2O
CH6H6 + O2 = H2O + CO2 =>
CH6H6 + 4 O2 = 6 H2O + CO2
CH3COOH + NaOH = CH3OONa = H2O =>
CH3COOH + 2 NaOH = 2 CH3OONa
HCOH + K2Cr2O7 + H2SO4 = CHOOH + Cr2(SO4)3 + K2SO4 + H2O =>
3 HCOH + K2Cr2O7 + 4 H2SO4 = 3 CHOOH + Cr2(SO4)3 + K2SO4 + 4 H2O
Cr2O3 + C = Cr + CO2 =>
2 Cr2O3 + 3 C = 4 Cr + 3 CO2
H2 + O2 = H2O = H2 =>
2 H2 + O2 = 2 H2O
Cu(NO3)2 + Fe = Cu + Fe(NO3) =>
Cu(NO3)2 + 2 Fe = Cu + 2 Fe(NO3)
C2H5OH + O2 = CO2 + H2O =>
C2H5OH + 3 O2 = 2 CO2 + 3 H2O
CrCl2 + HClO = CrCl3 + Cr(OH)3 =>
6 CrCl2 + 3 HClO = 5 CrCl3 + Cr(OH)3
Na3PO4 + HCl = NaCl + H3PO4 =>
Na3PO4 + 3 HCl = 3 NaCl + H3PO4
CrCl2 + HClO = CrCl3 + Cr(OH)3 =>
6 CrCl2 + 3 HClO = 5 CrCl3 + Cr(OH)3
((CH3(CH2)6CH3)) + O2 = CO2 + H2O =>
2((CH3(CH2)6CH3)) + 25 O2 = 16 CO2 + 18 H2O
KI + MnO2 + H2SO4 = I2 + KHSO4 + H2O + MnSO4 =>
2 KI + MnO2 + 3 H2SO4 = I2 + 2 KHSO4 + 2 H2O + MnSO4
Al2(SO4)3H2O + H2O = H2SO4 + Al(OH)3 =>
Al2(SO4)3H2O + 5 H2O = 3 H2SO4 + 2 Al(OH)3
C2H6O + K2Cr2O7 + H2SO4 = C2H4O2 + Cr2O3 + H2O + K2SO4 =>
3 C2H6O + 2 K2Cr2O7 + 2 H2SO4 = 3 C2H4O2 + 2 Cr2O3 + 5 H2O + 2 K2SO4
CrCl2 + HClO = CrCl3 + Cr(OH)3 =>
6 CrCl2 + 3 HClO = 5 CrCl3 + Cr(OH)3
H2S + Co3O4 = Co3S4 + H2O =>
4 H2S + Co3O4 = Co3S4 + 4 H2O
K2S + NaClO + H2SO4 = SNaCl + K2SO4 + H2O =>
K2S + NaClO + H2SO4 = SNaCl + K2SO4 + H2O
HCl + KCl = HK + Cl2 =>
HCl + KCl = HK + Cl2
Cu(NO3)2 + (NH4)2HPO4 + NH4OH = Cu3(PO4)2 + NH4NO3 + H2O =>
3 Cu(NO3)2 + 2(NH4)2HPO4 + 2 NH4OH = Cu3(PO4)2 + 6 NH4NO3 + 2 H2O
Mn{2+} + OH{-} + H2O2 = MnO(OH)2 + H2O =>
Mn{2+} + 2 OH{-} + H2O2 = MnO(OH)2 + H2O
KHS + KMnO4 + H2SO4 = KOH + MnO2 + S =>
6 KHS + 2 KMnO4 + H2SO4 = 8 KOH + 2 MnO2 + 7 S
LiHS + S = Li2S2 + H2S =>
2 LiHS + S = Li2S2 + H2S
PbCO3 = PbO + CO2 =>
PbCO3 = PbO + CO2
NaBr = Br2 + Na =>
2 NaBr = Br2 + 2 Na
C6H10 + H2SO4 = C6H11OH + SO3 =>
C6H10 + H2SO4 = C6H11OH + SO3
Cr2O3 + Na2CO3 + NaNO3 = NaCrO4 + CO2 + NaNO2 =>
Cr2O3 + Na2CO3 + 4 NaNO3 = 2 NaCrO4 + CO2 + 4 NaNO2
Mn(OH)2 + PdO2 + HNO3 = HMnO4 + Pd(NO3)2 + H2O =>
2 Mn(OH)2 + 5 PdO2 + 10 HNO3 = 2 HMnO4 + 5 Pd(NO3)2 + 6 H2O
CaSO2 + O2 = CaSO4 =>
CaSO2 + O2 = CaSO4
P4 + H3 = PH4 =>
3 P4 + 16 H3 = 12 PH4
CH(OH)COOH + NaOH = CH(OH)COONa + H2O =>
CH(OH)COOH + NaOH = CH(OH)COONa + H2O
FeCl3 + HOH = Fe(OH)3 + HCl =>
FeCl3 + 3 HOH = Fe(OH)3 + 3 HCl
In2O3 + C = In + CO2 =>
2 In2O3 + 3 C = 4 In + 3 CO2
AgCl = Ag + Cl2 =>
2 AgCl = 2 Ag + Cl2
(NH4)2PtCl6 = NH3 + H2 + Cl2 + Pt =>
(NH4)2PtCl6 = 2 NH3 + H2 + 3 Cl2 + Pt
Cu(OH)2 + Cu = Cu2O + H2O =>
Cu(OH)2 + Cu = Cu2O + H2O
Al(NO3)3 + Na2CO3 + H2O = NaNO3 + Al(OH)3 + CO2 =>
2 Al(NO3)3 + 3 Na2CO3 + 3 H2O = 6 NaNO3 + 2 Al(OH)3 + 3 CO2
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