| Équations équilibrées la veille | Équations équilibrées le lendemain |
6 FeO + 6 C = 6 CO + Fe6
Ca(HCO3)2 + HNO3 = CO2 + Ca(NO3)2 + H2O =>
Ca(HCO3)2 + 2 HNO3 = 2 CO2 + Ca(NO3)2 + 2 H2O
BF3 + H2O = H3BO3 + HBF4 =>
4 BF3 + 3 H2O = H3BO3 + 3 HBF4
BF3 + H2O = B2O3 + HF =>
2 BF3 + 3 H2O = B2O3 + 6 HF
CrSO3 + H2SO4 = CrH2SO4 + SO3 =>
CrSO3 + H2SO4 = CrH2SO4 + SO3
H2O + Na = NaOH + H2 =>
2 H2O + 2 Na = 2 NaOH + H2
Cs2O + HI = CsI + H2O =>
Cs2O + 2 HI = 2 CsI + H2O
SmCl2 + KMnO4 + H2SO4 = Sm2S3O12 + SmCl3 + KCl + MnCl2 + H2O =>
15 SmCl2 + 3 KMnO4 + 12 H2SO4 = 4 Sm2S3O12 + 7 SmCl3 + 3 KCl + 3 MnCl2 + 12 H2O
H2(SO4) + KOH = K2(SO4) + H2O =>
H2(SO4) + 2 KOH = K2(SO4) + 2 H2O
KMnO4 + KBr + H2SO4 = Br2 + KHSO4 + MnSO4 + H2O =>
2 KMnO4 + 10 KBr + 14 H2SO4 = 5 Br2 + 12 KHSO4 + 2 MnSO4 + 8 H2O
AgNO3 + BaCl2 = AgCl + Ba(NO3)2 =>
2 AgNO3 + BaCl2 = 2 AgCl + Ba(NO3)2
MgBr2 + AgNO3 = AgBr + Mg(NO3)2 =>
MgBr2 + 2 AgNO3 = 2 AgBr + Mg(NO3)2
KClO3 + MnO2 + KOH = KCl + K2MnO4 + H2O =>
KClO3 + 3 MnO2 + 6 KOH = KCl + 3 K2MnO4 + 3 H2O
HNO3 + CUO = H2O + CU(NO3)2 =>
2 HNO3 + CUO = H2O + CU(NO3)2
NiO + Ag = Ag2O3 + Ni =>
3 NiO + 2 Ag = Ag2O3 + 3 Ni
C10H22(l) + O(g) = CO2 + H2O =>
C10H22(l) + 31 O(g) = 10 CO2 + 11 H2O
Pb(C2H3O2)2 + (NH4)2SO4 = PbSO4 + C2H3O2NH4 =>
Pb(C2H3O2)2 + (NH4)2SO4 = PbSO4 + 2 C2H3O2NH4
Sb(SO4)2 + KMnO4 + H2O = H3SbO4 + K2SO4 + MnSO4 + H2SO4 =>
10 Sb(SO4)2 + 2 KMnO4 + 32 H2O = 10 H3SbO4 + K2SO4 + 2 MnSO4 + 17 H2SO4
Mn6N3 = N2 + Mn =>
2 Mn6N3 = 3 N2 + 12 Mn
Al(OH)4{-} + H2SO4 = Al(OH)4 + H2 + SO4{-2} =>
2 Al(OH)4{-} + H2SO4 = 2 Al(OH)4 + H2 + SO4{-2}
CuCl2 + NaOH = Cu(OH)2 + NaCl =>
CuCl2 + 2 NaOH = Cu(OH)2 + 2 NaCl
Sn + Ag = SnAg2 =>
Sn + 2 Ag = SnAg2
Cr2O3(s) + H2(g) = Cr(s) + H2O9(g) =>
3 Cr2O3(s) + H2(g) = 6 Cr(s) + H2O9(g)
C19H15Br + CH3CH2OH = C21H20O + HBr =>
C19H15Br + CH3CH2OH = C21H20O + HBr
SnSO4 = SnSO3 + O2 =>
2 SnSO4 = 2 SnSO3 + O2
NaHSO3 + Ca(ClO4)2 = NaClO4 + Ca(HSO3)2 =>
2 NaHSO3 + Ca(ClO4)2 = 2 NaClO4 + Ca(HSO3)2
FeS + HNO3 = Fe(NO3)2 + NO + Fe2(SO4)3 + H2O =>
9 FeS + 32 HNO3 = 3 Fe(NO3)2 + 26 NO + 3 Fe2(SO4)3 + 16 H2O
LiBrO3 + LiBr = Li2O + Br2 =>
LiBrO3 + 5 LiBr = 3 Li2O + 3 Br2
Zn100O100 + P200O500 = P3Zn97O100 + O200 =>
388 Zn100O100 + 6 P200O500 = 400 P3Zn97O100 + 9 O200
Ag2NO3 + Na2CrO4 = Ag2CrO4 + Na2NO3 =>
Ag2NO3 + Na2CrO4 = Ag2CrO4 + Na2NO3
Fe + C + N{-}2 = Fe(CN){-}2 =>
Fe + C + N{-}2 = Fe(CN){-}2
P2O5 + CO = P + CO2 =>
P2O5 + 5 CO = 2 P + 5 CO2
Ca3P2 + HNO3 = Ca(NO3)2 + NO2 + H3PO4 + H2O =>
Ca3P2 + 22 HNO3 = 3 Ca(NO3)2 + 16 NO2 + 2 H3PO4 + 8 H2O
MnO4{-} + Au + H{+} = Mn{2+} + Au{3+} + H2O =>
3 MnO4{-} + 5 Au + 24 H{+} = 3 Mn{2+} + 5 Au{3+} + 12 H2O
Co(NO3)2 + Fe(NO3)3 + N2H4CO + ZrO(NO3)2 = Zr7Co93Fe2O4 + N2 + H2O + CO2 =>
93 Co(NO3)2 + 2 Fe(NO3)3 + 207 N2H4CO + 7 ZrO(NO3)2 = Zr7Co93Fe2O4 + 310 N2 + 414 H2O + 207 CO2
ICl3 = ICl + Cl2 =>
ICl3 = ICl + Cl2
BF3 + H2O = B2O3 + HF =>
2 BF3 + 3 H2O = B2O3 + 6 HF
Cl2 + NaOH = NaCl + NaClO3 + H2O =>
3 Cl2 + 6 NaOH = 5 NaCl + NaClO3 + 3 H2O
BF3 + H2O = H3BO3 + HBF4 =>
4 BF3 + 3 H2O = H3BO3 + 3 HBF4
Fe(OH)2 + NH4Cl = FeCl2 + NH4OH =>
Fe(OH)2 + 2 NH4Cl = FeCl2 + 2 NH4OH
Na3PO4 + NaOH = Na3OH + Na(PO4)3 =>
3 Na3PO4 + 4 NaOH = 4 Na3OH + Na(PO4)3
C9H8 + Cr2O7{-2} + H{+} = C9H8O4 + Cr{+3} + H2O =>
3 C9H8 + 4 Cr2O7{-2} + 32 H{+} = 3 C9H8O4 + 8 Cr{+3} + 16 H2O
C6H10 + K2Cr2O7 + H2SO4 = C6H10O4 + Cr2(SO4)3 + H2O + K2SO4 =>
3 C6H10 + 4 K2Cr2O7 + 16 H2SO4 = 3 C6H10O4 + 4 Cr2(SO4)3 + 16 H2O + 4 K2SO4
NO + H2SO4 = NSO4 + H2O =>
NO + H2SO4 = NSO4 + H2O
NaH + H3COH = NaOH + CH4 =>
NaH + H3COH = NaOH + CH4
CuFeS2 + O2 = SO2 + CuO + FeO =>
CuFeS2 + 3 O2 = 2 SO2 + CuO + FeO
H5IO6 + NaOH = Na2H3IO6 + H2O =>
H5IO6 + 2 NaOH = Na2H3IO6 + 2 H2O
Cu + O = CuO =>
Cu + O = CuO
Cu(NO3)2(aq) + KOH(aq) = Cu(OH)2(s) + KNO3(aq) =>
Cu(NO3)2(aq) + 2 KOH(aq) = Cu(OH)2(s) + 2 KNO3(aq)
Cu + NO3{-} + H{+} = Cu{2+} + NO + H2O =>
3 Cu + 2 NO3{-} + 8 H{+} = 3 Cu{2+} + 2 NO + 4 H2O
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