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4 Fe(s) + 3 O2(g) = 2 Fe2O3(s)
CH3CH2CHOHCH3 + O = CH3CH2COCH3 + H2O =>
CH3CH2CHOHCH3 + O = CH3CH2COCH3 + H2O
C + HNO3 = CO2 + NO2 + H2O =>
C + 4 HNO3 = CO2 + 4 NO2 + 2 H2O
TiBr4 + H2 = Ti + HBr =>
TiBr4 + 2 H2 = Ti + 4 HBr
Na + H2O = NaOH + H =>
Na + H2O = NaOH + H
CH3COOH + CaCo3 = Ca(CH3COO) + Co2 + H20 =>
20 CH3COOH + 20 CaCo3 = 20 Ca(CH3COO) + 30 Co2 + H20
CaC2 + H2O = C2H2 + Ca(OH)2 =>
CaC2 + 2 H2O = C2H2 + Ca(OH)2
H2SO4 + Pb(OH)4 = Pb(SO4)2 + H2O =>
2 H2SO4 + Pb(OH)4 = Pb(SO4)2 + 4 H2O
Ca + O2 = CaO =>
2 Ca + O2 = 2 CaO
CH4 + O2 = CO + H2O =>
2 CH4 + 3 O2 = 2 CO + 4 H2O
Al + HCl = AlCl3 + H2 =>
2 Al + 6 HCl = 2 AlCl3 + 3 H2
SiH4 + NH3 = Si3N4 + H2 =>
3 SiH4 + 4 NH3 = Si3N4 + 12 H2
Al + H2O = Al(OH)3 + H2 =>
2 Al + 6 H2O = 2 Al(OH)3 + 3 H2
NO + H3 = N2 + H2O =>
6 NO + 4 H3 = 3 N2 + 6 H2O
C2H4 + O2 = CO + H2O =>
C2H4 + 2 O2 = 2 CO + 2 H2O
Fe(OH)2 + O2 = Fe2O3 + H2O =>
4 Fe(OH)2 + O2 = 2 Fe2O3 + 4 H2O
Ca + H2O = CaOH + H2 =>
2 Ca + 2 H2O = 2 CaOH + H2
Fe3O + CO = Fe + CO2 =>
Fe3O + CO = 3 Fe + CO2
Al + H2SO4 = Al2(SO4)3 + H2 =>
2 Al + 3 H2SO4 = Al2(SO4)3 + 3 H2
C5H10 + O2 = CO + H2O =>
C5H10 + 5 O2 = 5 CO + 5 H2O
Ca3(PO4)2 + H2SO4 = CaSO4 + Ca(H2PO4)2 =>
Ca3(PO4)2 + 2 H2SO4 = 2 CaSO4 + Ca(H2PO4)2
Cu2S = Cu + S =>
Cu2S = 2 Cu + S
Al + NAOH + H2O = NAAl(OH)4 + H2 =>
2 Al + 2 NAOH + 6 H2O = 2 NAAl(OH)4 + 3 H2
(NH4)2S + ZnCl2 = (NH4)2Cl2 + ZnS =>
(NH4)2S + ZnCl2 = (NH4)2Cl2 + ZnS
HCl + K2CO3 = KCl + H2O + CO2 =>
2 HCl + K2CO3 = 2 KCl + H2O + CO2
NA + H2O = NAOH + H2 =>
2 NA + 2 H2O = 2 NAOH + H2
K3AsO3 + HNO3 = K3AsO4 + N2O3 + H2O =>
2 K3AsO3 + 2 HNO3 = 2 K3AsO4 + N2O3 + H2O
H3PO4 + HCl = PCl5 + H2O =>
H3PO4 + 5 HCl = PCl5 + 4 H2O
NH3 + O2 = NO + HO2 =>
2 NH3 + 7 O2 = 2 NO + 6 HO2
HClO2 + Br = HBr + ClO2 =>
HClO2 + Br = HBr + ClO2
OHCH2CH2OH + KMnO4 + H2SO4 = CO2 + K2SO4 + MnSO4 + H2O =>
OHCH2CH2OH + 2 KMnO4 + 3 H2SO4 = 2 CO2 + K2SO4 + 2 MnSO4 + 6 H2O
K2Cr2O7 + KJ + H2SO4 = Cr2(SO4)3 + J2 + K2SO4 + H2O =>
K2Cr2O7 + 6 KJ + 7 H2SO4 = Cr2(SO4)3 + 3 J2 + 4 K2SO4 + 7 H2O
P + O2 = P2O5 =>
4 P + 5 O2 = 2 P2O5
MgO + H2SO4 = MgSO4 + H2O =>
MgO + H2SO4 = MgSO4 + H2O
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
Al + Pb(NO3)2 = Al(NO3)2 + Pb =>
Al + Pb(NO3)2 = Al(NO3)2 + Pb
FeCl2 + HCl = FeCl3 + H2 =>
2 FeCl2 + 2 HCl = 2 FeCl3 + H2
PbS + O2 = PbO + SO2 =>
2 PbS + 3 O2 = 2 PbO + 2 SO2
Pb(NO3)2 + KI = KNO3 + PbI2 =>
Pb(NO3)2 + 2 KI = 2 KNO3 + PbI2
Cr2O3 + PbO2 + KOH = K2CrO4 + K2PbO2 + H2O =>
Cr2O3 + 3 PbO2 + 10 KOH = 2 K2CrO4 + 3 K2PbO2 + 5 H2O
C5H10O + K2CrO4 + H2SO4 = C5H8O + K2SO4 + Cr2(SO4)3 + H2O =>
3 C5H10O + 2 K2CrO4 + 5 H2SO4 = 3 C5H8O + 2 K2SO4 + Cr2(SO4)3 + 8 H2O
Fe(OH)3 = Fe2O3 + H2O =>
2 Fe(OH)3 = Fe2O3 + 3 H2O
AgI + Na2S = Ag2S + NaI =>
2 AgI + Na2S = Ag2S + 2 NaI
H2O + SO3 = H2SO4 =>
H2O + SO3 = H2SO4
H2S2O7(s) + H2O(l) = H2SO4(l) =>
H2S2O7(s) + H2O(l) = 2 H2SO4(l)
CO2 + H2O = C8H12O6 + O2 =>
8 CO2 + 6 H2O = C8H12O6 + 8 O2
H2S2O7(s) + H2O(l) = H2SO4(l) =>
H2S2O7(s) + H2O(l) = 2 H2SO4(l)
Ca(ClO3)2 = CaCl2 + O2 =>
Ca(ClO3)2 = CaCl2 + 3 O2
Na2CO3 = Na2O + CO2 =>
Na2CO3 = Na2O + CO2
Na2SiO3 + H2SO4 = Na2SO4 + H2SiO3 =>
Na2SiO3 + H2SO4 = Na2SO4 + H2SiO3
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