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O{2-} = O + 2e
P4H4 = PH3 + P4H2 =>
5 P4H4 = 4 PH3 + 4 P4H2
KClO3 = KCl + O2 =>
2 KClO3 = 2 KCl + 3 O2
Fe2O3 + Cu = CuO + Fe =>
Fe2O3 + 3 Cu = 3 CuO + 2 Fe
C9H20 + O2 = CO + H2O =>
2 C9H20 + 19 O2 = 18 CO + 20 H2O
Fe(OH)3 + H2C2O4 = H2O + Fe2(C2O4)3 =>
2 Fe(OH)3 + 3 H2C2O4 = 6 H2O + Fe2(C2O4)3
Fe2O3 + Cu = FeO + CuO =>
Fe2O3 + Cu = 2 FeO + CuO
C9H10 + O2 = CO2 + H2O =>
2 C9H10 + 23 O2 = 18 CO2 + 10 H2O
CH3COOH + CH3CH(OH)CH3 = CH3COOCH2CH3 + H2O =>
3 CH3COOH + 2 CH3CH(OH)CH3 = 3 CH3COOCH2CH3 + 2 H2O
NaI + CaCl2 = NaCl + CaI2 =>
2 NaI + CaCl2 = 2 NaCl + CaI2
Ag + H2O = AgO + H2 =>
Ag + H2O = AgO + H2
CH4 + H2O = CO + H2 =>
CH4 + H2O = CO + 3 H2
Li(s) + F2 = LiF(s) =>
2 Li(s) + F2 = 2 LiF(s)
Fe(NO3)3 + NH4(OH) = Fe(OH)3 + NH4NO3 =>
Fe(NO3)3 + 3 NH4(OH) = Fe(OH)3 + 3 NH4NO3
P2O5 + HCl = POCl3 + HPO3 =>
2 P2O5 + 3 HCl = POCl3 + 3 HPO3
FeO + KMnO4 + HCl = MnCl2 + H2O + FeCl3 + KCl =>
5 FeO + KMnO4 + 18 HCl = MnCl2 + 9 H2O + 5 FeCl3 + KCl
CaHPO4 + KHSO4 = K2SO4 + CaSO4 + H3PO4 =>
CaHPO4 + 2 KHSO4 = K2SO4 + CaSO4 + H3PO4
Ag + O = AgO2 =>
Ag + 2 O = AgO2
Al2(SO4)3 + Na(HCO3) = Al(OH)3 + Na2SO4 + CO2 =>
Al2(SO4)3 + 6 Na(HCO3) = 2 Al(OH)3 + 3 Na2SO4 + 6 CO2
Ba3N2 + H2SO4 = BaSO4 + NH3 =>
Ba3N2 + 3 H2SO4 = 3 BaSO4 + 2 NH3
KCN(aq) + HBr(aq) = KBr(aq) + HCN(aq) =>
KCN(aq) + HBr(aq) = KBr(aq) + HCN(aq)
VCl3 + Na + CO = V(CO)6 + NaCl =>
VCl3 + 3 Na + 6 CO = V(CO)6 + 3 NaCl
Cu + H2SO4 + NaNO3 = Cu(NO3)2 + NaHSO4 + H2O + NO2 =>
Cu + 4 H2SO4 + 4 NaNO3 = Cu(NO3)2 + 4 NaHSO4 + 2 H2O + 2 NO2
H2O + RbOH = RbOH2 + OH =>
H2O + RbOH = RbOH2 + OH
Br2 + NiI3 = BrNi + I =>
Br2 + 2 NiI3 = 2 BrNi + 6 I
C3H6O + H2O = C3H6(OH)2 =>
C3H6O + H2O = C3H6(OH)2
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
C2 + HNO3 = CO2 + NO2 + H2O =>
C2 + 8 HNO3 = 2 CO2 + 8 NO2 + 4 H2O
C16H18N2O4S + O2 = CO2 + H2O + N + S =>
2 C16H18N2O4S + 37 O2 = 32 CO2 + 18 H2O + 4 N + 2 S
Pb + H3PO4 = H2 + Pb3(PO4)2 =>
3 Pb + 2 H3PO4 = 3 H2 + Pb3(PO4)2
Fe(NO3)3 + Li3PO4 = FePO4 + Li(NO3) =>
Fe(NO3)3 + Li3PO4 = FePO4 + 3 Li(NO3)
K2SiF6 + O2 = K2O + SiO2 + F =>
2 K2SiF6 + 3 O2 = 2 K2O + 2 SiO2 + 12 F
Cu(OH)2 + NaNO3 = Cu(NO3)2 + NaOH =>
Cu(OH)2 + 2 NaNO3 = Cu(NO3)2 + 2 NaOH
FeCl2 + O2 = FeO + Cl2 =>
2 FeCl2 + O2 = 2 FeO + 2 Cl2
CCl4 + UO2 = UCl4 + COCl2 =>
2 CCl4 + UO2 = UCl4 + 2 COCl2
V2O5 + HCl = VOCl3 + H2O =>
V2O5 + 6 HCl = 2 VOCl3 + 3 H2O
Pb(NO3)2(aq) + H2S(g) = PbS(s) + HNO3(aq) =>
Pb(NO3)2(aq) + H2S(g) = PbS(s) + 2 HNO3(aq)
K2Cr2O7 + BaCl2 + KOH = BaCrO4 + KCl + HCl =>
K2Cr2O7 + 2 BaCl2 + KOH = 2 BaCrO4 + 3 KCl + HCl
CH3CH2COH + NaOH + Br2 = CH3COONa + CHBr3 + HBr =>
CH3CH2COH + NaOH + 3 Br2 = CH3COONa + CHBr3 + 3 HBr
CH3CH(NH2)CH2CH3 + HCl = CH3CH(NH3)CH2CH3Cl =>
CH3CH(NH2)CH2CH3 + HCl = CH3CH(NH3)CH2CH3Cl
CO2 + NaO = NaCO3 =>
CO2 + NaO = NaCO3
Hg(SCN)2 + KSCN = K2Hg(SCN)4 =>
Hg(SCN)2 + 2 KSCN = K2Hg(SCN)4
C10H8 + O2 = CO2 + H2O =>
C10H8 + 12 O2 = 10 CO2 + 4 H2O
C3H9N + H2O = CH4 + CO2 + NH3 =>
4 C3H9N + 6 H2O = 9 CH4 + 3 CO2 + 4 NH3
Al(OH)3 + CaCO3 = Al2(CO3)3 + Ca(OH)2 =>
2 Al(OH)3 + 3 CaCO3 = Al2(CO3)3 + 3 Ca(OH)2
HH + OO = HOH =>
2 HH + OO = 2 HOH
C2H4O + Ag(NH3)2OH = CH3COONH4 + Ag + NH3 + H2O =>
C2H4O + 2 Ag(NH3)2OH = CH3COONH4 + 2 Ag + 3 NH3 + H2O
C3H6Br2 + KOH = C3H5Br + KBr + H2O =>
C3H6Br2 + KOH = C3H5Br + KBr + H2O
Na3PO4 + Pb(NO3)2 = Na3(NO3)2 + PbPO4 =>
Na3PO4 + Pb(NO3)2 = Na3(NO3)2 + PbPO4
Zn3Sb2(s) + H2O(l) = Zn(OH)2(aq) + SbH3(s) =>
Zn3Sb2(s) + 6 H2O(l) = 3 Zn(OH)2(aq) + 2 SbH3(s)
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