| Équations équilibrées la veille | Équations équilibrées le lendemain |
FeO3(s) + 3 CO(g) = Fe(l) + 3 CO2(g)
CO(NH2)2 + NH4Cl = COCl2 + NH3 =>
CO(NH2)2 + 2 NH4Cl = COCl2 + 4 NH3
AlCl3 + NaOH = Al(OH)3 + NaCl =>
AlCl3 + 3 NaOH = Al(OH)3 + 3 NaCl
VCl2 + NaOH + O2 = Na2[V(OH)O3] + NaCl + H2O =>
4 VCl2 + 16 NaOH + 3 O2 = 4 Na2[V(OH)O3] + 8 NaCl + 6 H2O
HOOCCHOHCHOHCOOH + NaOH = NaOOCCHOHCHOHCOONa + H2O =>
HOOCCHOHCHOHCOOH + 2 NaOH = NaOOCCHOHCHOHCOONa + 2 H2O
SiN = Si + N2 =>
2 SiN = 2 Si + N2
Mn30Sn10C = Mn + Sn + C =>
Mn30Sn10C = 30 Mn + 10 Sn + C
CoCl2 + Na(OH) = Co(OH)Cl + NaCl =>
CoCl2 + Na(OH) = Co(OH)Cl + NaCl
Fe2 + HClO3 = Fe(ClO3)3 + H2 =>
Fe2 + 6 HClO3 = 2 Fe(ClO3)3 + 3 H2
[CH3CH(NH3)COOH]Cl + KOH = CH3CH(NH2)COOK + KCl + H2O =>
[CH3CH(NH3)COOH]Cl + 2 KOH = CH3CH(NH2)COOK + KCl + 2 H2O
AlPO4 + Sr(NO2)2 = Al(NO2)3 + Sr3(PO4)2 =>
2 AlPO4 + 3 Sr(NO2)2 = 2 Al(NO2)3 + Sr3(PO4)2
Xe + Fl = XeFl4 =>
Xe + 4 Fl = XeFl4
Ca(OH)2 + H3O = H2O + Ca =>
Ca(OH)2 + 2 H3O = 4 H2O + Ca
NaOH + HPO4 = NaPO4 + H2O =>
NaOH + HPO4 = NaPO4 + H2O
KOH + HCN = KO + H2CN =>
KOH + HCN = KO + H2CN
Fe2(CO)9 + HNO3 = Fe(NO3)3 + CO2 + NO2 + H2O =>
Fe2(CO)9 + 30 HNO3 = 2 Fe(NO3)3 + 9 CO2 + 24 NO2 + 15 H2O
Bi2S3 + NHO3 = Bi(NO3)3 + NO + S + H2O =>
Bi2S3 + 8 NHO3 = 2 Bi(NO3)3 + 2 NO + 3 S + 4 H2O
As4 + I2 = AsI5 =>
As4 + 10 I2 = 4 AsI5
C7H7N + H2SO4 = (NH4)2SO4 + C7H6O2 + SO2 =>
2 C7H7N + 3 H2SO4 = (NH4)2SO4 + 2 C7H6O2 + 2 SO2
Ag2SO4(ac) + Cr(s) = Ag(s) + Cr2(SO4)3(ac) =>
3 Ag2SO4(ac) + 2 Cr(s) = 6 Ag(s) + Cr2(SO4)3(ac)
Cl2 + LiI = LiCl + I2 =>
Cl2 + 2 LiI = 2 LiCl + I2
Cr2O3 + KOH + HCl = K[Cr(OH)4] + KCl =>
Cr2O3 + 5 KOH + 3 HCl = 2 K[Cr(OH)4] + 3 KCl
KOH + HCN = KO + H2CN =>
KOH + HCN = KO + H2CN
K2Cr2O7 + NaHSO3 + HNO3 = Cr(NO3)3 + KNO3 + NaHSO4 + H2O =>
K2Cr2O7 + 3 NaHSO3 + 8 HNO3 = 2 Cr(NO3)3 + 2 KNO3 + 3 NaHSO4 + 4 H2O
Na + Cl2 = NaCl =>
2 Na + Cl2 = 2 NaCl
AlPO4 + Sr(NO2)2 = Al(NO2)3 + Sr3(PO4)2 =>
2 AlPO4 + 3 Sr(NO2)2 = 2 Al(NO2)3 + Sr3(PO4)2
Ca(H2PO4)2 + KCl = KH2PO4 + CaCl2 =>
Ca(H2PO4)2 + 2 KCl = 2 KH2PO4 + CaCl2
Mg + Co(No3)2 = Mg(No3) + Co2 =>
4 Mg + 2 Co(No3)2 = 4 Mg(No3) + Co2
Al(OH)3 + KOH = K3(Al(OH)6) =>
Al(OH)3 + 3 KOH = K3(Al(OH)6)
HNO3 + Fe(OH)3 = HOH + Fe(NO3)3 =>
3 HNO3 + Fe(OH)3 = 3 HOH + Fe(NO3)3
K4Fe(CN)6 + KMnO4 + H2SO4 = KHSO4 + Fe2(SO4)3 + MnSO4 + HNO3 + CO2 + H2O =>
10 K4Fe(CN)6 + 122 KMnO4 + 299 H2SO4 = 162 KHSO4 + 5 Fe2(SO4)3 + 122 MnSO4 + 60 HNO3 + 60 CO2 + 188 H2O
Al(OH)3 + KOH = K3(Al(OH)6) =>
Al(OH)3 + 3 KOH = K3(Al(OH)6)
C14H14 + O2 = CO2 + H2O =>
2 C14H14 + 35 O2 = 28 CO2 + 14 H2O
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
C4H10 + O2 = CO2 + H2O =>
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
CH3CH2CHOHCH3 + MnO4{-} + H{+} = CH3CH2COCH3 + Mn{2+} + H2O =>
5 CH3CH2CHOHCH3 + 2 MnO4{-} + 6 H{+} = 5 CH3CH2COCH3 + 2 Mn{2+} + 8 H2O
N2(g) + O2(s) = N2O5(g) =>
2 N2(g) + 5 O2(s) = 2 N2O5(g)
CuSO4 + Na2CO3 = CuCO3 + Na2SO4 =>
CuSO4 + Na2CO3 = CuCO3 + Na2SO4
K + O2 + H = KOH =>
2 K + O2 + 2 H = 2 KOH
PhCH3 + KMnO4 + H2SO4 = PhCOOH + K2SO4 + MnSO4 + H2O =>
5 PhCH3 + 6 KMnO4 + 9 H2SO4 = 5 PhCOOH + 3 K2SO4 + 6 MnSO4 + 14 H2O
FeS2 + O2 = Fe2O3 + SO2 =>
4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
Na2SiO3 + K2CO3 = K2SiO3 + Na2CO3 =>
Na2SiO3 + K2CO3 = K2SiO3 + Na2CO3
Al + Cl2 = AlCl2 =>
Al + Cl2 = AlCl2
MnO4{-}1(aq) + IO3{-}1(aq) + H2O(l) = MnO2(s) + IO4{-}1(aq) + OH{-}1(aq) =>
2 MnO4{-}1(aq) + 3 IO3{-}1(aq) + H2O(l) = 2 MnO2(s) + 3 IO4{-}1(aq) + 2 OH{-}1(aq)
C2H4 + [Ag(NH3)2]OH = C2H4(COOH)2 + Ag + NH3 + H2O =>
2 C2H4 + 10[Ag(NH3)2]OH = C2H4(COOH)2 + 10 Ag + 20 NH3 + 6 H2O
Na2CO3 = Na2O + CO2 =>
Na2CO3 = Na2O + CO2
Mg2Sn + H2O = SnH4 + Mg(OH)2 =>
Mg2Sn + 4 H2O = SnH4 + 2 Mg(OH)2
BiCl5(aq) + Na2S(aq) = Bi2S5(s) + NaCl(aq) =>
2 BiCl5(aq) + 5 Na2S(aq) = Bi2S5(s) + 10 NaCl(aq)
FeS2(s) = FeS(s) + S2(g) =>
2 FeS2(s) = 2 FeS(s) + S2(g)
NO + I2 + H2O = HNO3 + HI =>
2 NO + 3 I2 + 4 H2O = 2 HNO3 + 6 HI
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