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4 B + 3 O2 = 2 B2O3
Cu + O2 = CuO =>
2 Cu + O2 = 2 CuO
AgC2H3O2 + CuSO4 = Ag2SO4 + Cu(C2H3O2)2 =>
2 AgC2H3O2 + CuSO4 = Ag2SO4 + Cu(C2H3O2)2
H2SO4 + KC2H3O2 = C2H4O2 + K2SO4 =>
H2SO4 + 2 KC2H3O2 = 2 C2H4O2 + K2SO4
AlI3 + KOH = KI + Al(OH)3 =>
AlI3 + 3 KOH = 3 KI + Al(OH)3
K2CO3 + HClO3 = KClO3 + CO2 + H2O =>
K2CO3 + 2 HClO3 = 2 KClO3 + CO2 + H2O
Li + F2 = LiF =>
2 Li + F2 = 2 LiF
((CH3(CH2)2CH3)) + O2 = CO2 + H2O =>
2((CH3(CH2)2CH3)) + 13 O2 = 8 CO2 + 10 H2O
Cu{2+} + Cl{-}— = CuCl4{2-} =>
Cu{2+} + 4 Cl{-}— = CuCl4{2-}
CH2O + AgOH = Ag + CH2O2 + H2O =>
CH2O + 2 AgOH = 2 Ag + CH2O2 + H2O
Ag2SO4 + NaNO3 = Ag2NO3 + NaSO4 =>
Ag2SO4 + NaNO3 = Ag2NO3 + NaSO4
Fe + SnI2 = FeI2 + Sn =>
Fe + SnI2 = FeI2 + Sn
NH2{-} + H2O = NH3 + OH{-} =>
NH2{-} + H2O = NH3 + OH{-}
CH3COOC2H5 + NaCl = CH3COONa + C2H5Cl =>
CH3COOC2H5 + NaCl = CH3COONa + C2H5Cl
Pb{2+} + (NH4)2SO4 = PbSO4 + NH4{+} =>
Pb{2+} + (NH4)2SO4 = PbSO4 + 2 NH4{+}
C4H8 + HF = C4H9{+} + F{-} =>
C4H8 + HF = C4H9{+} + F{-}
NH3 + H2SO4 = SO4 + NH4 =>
2 NH3 + H2SO4 = SO4 + 2 NH4
CH3H2OH + O2 = H2O + CH3COOH =>
2 CH3H2OH + 2 O2 = 4 H2O + CH3COOH
I({-}) + Br{2+} = I + Br{-} =>
3 I({-}) + Br{2+} = 3 I + Br{-}
Cu(NO3) + NH3 = Cu(H)3 + NNO3 =>
Cu(NO3) + NH3 = Cu(H)3 + NNO3
FeCr2O7 + K2CO3 + O2 = Fe2O3 + K2CrO4 + CO2 =>
4 FeCr2O7 + 8 K2CO3 + O2 = 2 Fe2O3 + 8 K2CrO4 + 8 CO2
Fe + HNO3 = Fe(NO3)3 + NO + H2O =>
Fe + 4 HNO3 = Fe(NO3)3 + NO + 2 H2O
NiSO4*6H2O = Ni + S + O2 + H2O =>
NiSO4*6H2O = Ni + S + 2 O2 + 6 H2O
CH3NH2 + CH3OH = (CH3)2NH + H2O =>
CH3NH2 + CH3OH = (CH3)2NH + H2O
Zn(NO3)2 + Na(OH) = Zn(OH)2 + Na(NO3) =>
Zn(NO3)2 + 2 Na(OH) = Zn(OH)2 + 2 Na(NO3)
CHO + KCO = HK + CO =>
CHO + KCO = HK + 2 CO
FeCl2 + CaCO3 = FeCO3 + CaCl2 =>
FeCl2 + CaCO3 = FeCO3 + CaCl2
Fe(NO2)3 + O2 = Fe2O3 + NO2 =>
4 Fe(NO2)3 + 3 O2 = 2 Fe2O3 + 12 NO2
(NH4)2SO4(aq) + Ca(OH)2(cr) = CaSO4(cr) + NH3(g) + H2O(l) =>
(NH4)2SO4(aq) + Ca(OH)2(cr) = CaSO4(cr) + 2 NH3(g) + 2 H2O(l)
Cu(NO3)2 + Na2CO3 = CuCO3 + NaNO3 =>
Cu(NO3)2 + Na2CO3 = CuCO3 + 2 NaNO3
Cu(NO3)2 + Fe = Fe(NO3)2 + Cu =>
Cu(NO3)2 + Fe = Fe(NO3)2 + Cu
C6H5CO2Na + H2O = NaOH + C6H5CO2H =>
C6H5CO2Na + H2O = NaOH + C6H5CO2H
Na2Cr2O7 + H2SO4 = CrO3 + Na2SO4 + H2O =>
Na2Cr2O7 + H2SO4 = 2 CrO3 + Na2SO4 + H2O
CH3CO2H(aq) + NaOH(aq) = CH3Na(aq) + CO2(g) + H2O(l) =>
CH3CO2H(aq) + NaOH(aq) = CH3Na(aq) + CO2(g) + H2O(l)
C7H6O + C4H6O3 = C9H8O2 + H2O =>
2 C7H6O + C4H6O3 = 2 C9H8O2 + H2O
Mg(NO3)2(heat) = Mg(NO2)2 + O2 =>
Mg(NO3)2(heat) = Mg(NO2)2 + O2
H2O + C + HCl = C2H5OH + CCl4 =>
H2O + 3 C + 4 HCl = C2H5OH + CCl4
Zn + Cu2NO3 = Zn(NO3)2 + Cu =>
Zn + 2 Cu2NO3 = Zn(NO3)2 + 4 Cu
Cu(NO3)2 + Na3PO4 = Cu3(PO4)2 + NaNO3 =>
3 Cu(NO3)2 + 2 Na3PO4 = Cu3(PO4)2 + 6 NaNO3
Cr(OH)3 + NaIO3 + NaOH = Na2CrO4 + NaI + H2O =>
2 Cr(OH)3 + NaIO3 + 4 NaOH = 2 Na2CrO4 + NaI + 5 H2O
C3H4OH + O2 = CO2 + H2O =>
4 C3H4OH + 15 O2 = 12 CO2 + 10 H2O
CuS + Fe{3+} = Cu{2+} + Fe{2+} + S8 =>
8 CuS + 16 Fe{3+} = 8 Cu{2+} + 16 Fe{2+} + S8
PbCl2 + MgBr2 = PbBr2 + MgCl2 =>
PbCl2 + MgBr2 = PbBr2 + MgCl2
IO + CO = I + CO2 =>
IO + CO = I + CO2
Cu(NO3)2 + NaOH = Cu(OH)2 + NaNO3 =>
Cu(NO3)2 + 2 NaOH = Cu(OH)2 + 2 NaNO3
NaOCl + KI + CH3COOH = NaCl + I2 + H2O + CH3COOK =>
NaOCl + 2 KI + 2 CH3COOH = NaCl + I2 + H2O + 2 CH3COOK
K2Cr2O7(aq) + NaOH(aq) = H2O + K2CrO4 + Na2CrO4 =>
K2Cr2O7(aq) + 2 NaOH(aq) = H2O + K2CrO4 + Na2CrO4
Br{-} + H2O2 = BrO3{-} + H2O =>
Br{-} + 3 H2O2 = BrO3{-} + 3 H2O
CuO + N2 = Cu(NO3)2 + Cu =>
6 CuO + N2 = Cu(NO3)2 + 5 Cu
(MnO4){-} + (H3O){+} + (C2O4)2{-} = (Mn)2{+} + CO2 + H2O =>
2(MnO4){-} + 16(H3O){+} + 13(C2O4)2{-} = (Mn)2{+} + 52 CO2 + 24 H2O
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