| Équations équilibrées la veille | Équations équilibrées le lendemain |
CaCl2 + K2CO3 = CaCO3 + 2 KCl
NiCl2 + HNO3 = Ni(NO3)2 + Cl2 + NO + H2O =>
3 NiCl2 + 8 HNO3 = 3 Ni(NO3)2 + 3 Cl2 + 2 NO + 4 H2O
P4 + Br2 = PBr3 =>
P4 + 6 Br2 = 4 PBr3
N2O5 = N2O4 + O2 =>
2 N2O5 = 2 N2O4 + O2
FeS + O2 = Fe2O3 + SO2 =>
4 FeS + 7 O2 = 2 Fe2O3 + 4 SO2
NaCN + NaOCl + H2O = CO2 + N2 + NaCl + NaOH =>
2 NaCN + 5 NaOCl + H2O = 2 CO2 + N2 + 5 NaCl + 2 NaOH
Mg + H3PO4 = Mg(PO4)2 + H2 =>
Mg + 2 H3PO4 = Mg(PO4)2 + 3 H2
(NH4)2CrO4 + Pb(NO3)2 = (NH4)(NO3) + PbCrO4 =>
(NH4)2CrO4 + Pb(NO3)2 = 2(NH4)(NO3) + PbCrO4
Ca + AgBr = CaBr2 + Ag =>
Ca + 2 AgBr = CaBr2 + 2 Ag
Zn + NaNO3 + NaOH + H2O = Na2[Zn(OH)4] + NH3 =>
4 Zn + NaNO3 + 7 NaOH + 6 H2O = 4 Na2[Zn(OH)4] + NH3
KNO2 = K + N2 + O2 =>
2 KNO2 = 2 K + N2 + 2 O2
KOH(aq) = K + OH =>
KOH(aq) = K + OH
Cr2(SO4)3 + Na2S + H2O = Cr(OH)3 + S + Na2SO4 =>
4 Cr2(SO4)3 + 9 Na2S + 12 H2O = 8 Cr(OH)3 + 12 S + 9 Na2SO4
C7H16 + O2 = CO2 + H2O =>
C7H16 + 11 O2 = 7 CO2 + 8 H2O
Pb + SO4 = PbSO4 =>
Pb + SO4 = PbSO4
CUS + HNO3 = CUSO4 + NO2 + H2O =>
CUS + 8 HNO3 = CUSO4 + 8 NO2 + 4 H2O
AlCl3 + K3PO4 = AlPO4 + KCl =>
AlCl3 + K3PO4 = AlPO4 + 3 KCl
Pb(NO3)2(aq) + NaOH = Pb(OH)2(s) + NaNO3(aq) =>
Pb(NO3)2(aq) + 2 NaOH = Pb(OH)2(s) + 2 NaNO3(aq)
Zn(NO3)2 + Na2(SO4) = ZnSO4 + NaNO3 =>
Zn(NO3)2 + Na2(SO4) = ZnSO4 + 2 NaNO3
N + H = NH3 =>
N + 3 H = NH3
Zn + Cu(NO3)2 = Zn(NO3)2 + Cu =>
Zn + Cu(NO3)2 = Zn(NO3)2 + Cu
CuFeS2 + O2 = Cu2S + FeO + SO2 =>
2 CuFeS2 + 4 O2 = Cu2S + 2 FeO + 3 SO2
KH2PO4 = P2O5 + KOH + H2O =>
2 KH2PO4 = P2O5 + 2 KOH + H2O
H3PO4 + FeBr3 = HBr + FePO4 =>
H3PO4 + FeBr3 = 3 HBr + FePO4
HIO3 + HCl + FeCl2 = FeCl3 + I2 + H2O =>
2 HIO3 + 10 HCl + 10 FeCl2 = 10 FeCl3 + I2 + 6 H2O
CuSO4(aq) + KI(aq) = CuI(s) + KI3(aq) + K2SO4(aq) =>
2 CuSO4(aq) + 5 KI(aq) = 2 CuI(s) + KI3(aq) + 2 K2SO4(aq)
Fe + KNO3 = Fe(NO3)2 + K =>
Fe + 2 KNO3 = Fe(NO3)2 + 2 K
NaH + S = Na2S + H2 =>
2 NaH + S = Na2S + H2
CH3ONa + CH3Br = CH3OCH3 + NaBr =>
CH3ONa + CH3Br = CH3OCH3 + NaBr
Cr + NaOH = CrNaOH =>
Cr + NaOH = CrNaOH
K + Sn(NO3)4 = KNO3 + Sn =>
4 K + Sn(NO3)4 = 4 KNO3 + Sn
SO2 + H2O + CO2 = C12H22O11 + H2SO4 =>
24 SO2 + 35 H2O + 12 CO2 = C12H22O11 + 24 H2SO4
HgCO3 = Hg + CO2 + O2 =>
2 HgCO3 = 2 Hg + 2 CO2 + O2
NiCl2(aq) + CuSO4(aq) = NiSO4 + CuCl2 =>
NiCl2(aq) + CuSO4(aq) = NiSO4 + CuCl2
[Fe(H2O)6]{2+} + H2O2 + H3O{+} + Cl{-} = [Fe(H2O)4Cl2]{+} + H2O =>
2[Fe(H2O)6]{2+} + H2O2 + 2 H3O{+} + 4 Cl{-} = 2[Fe(H2O)4Cl2]{+} + 8 H2O
C6H8O7 + NaClO2 = NaCl + H2O + CO2 =>
2 C6H8O7 + 9 NaClO2 = 9 NaCl + 8 H2O + 12 CO2
Ti2(SO4)3 + Fe2(SO4)3 = Ti(SO4)2 + FeSO4 =>
Ti2(SO4)3 + Fe2(SO4)3 = 2 Ti(SO4)2 + 2 FeSO4
Fe + C = FeC3 =>
Fe + 3 C = FeC3
Fe + H2SO4 + H2O = FeSO4*7H2O + H2 =>
Fe + H2SO4 + 7 H2O = FeSO4*7H2O + H2
CrO + OH = CrO4 + H2O =>
CrO + 6 OH = CrO4 + 3 H2O
C4H10O2 = C4H6 + H2O =>
C4H10O2 = C4H6 + 2 H2O
NH4 + KOH = NH3 + K + H2O =>
NH4 + KOH = NH3 + K + H2O
NO2 = O2 + N2 =>
2 NO2 = 2 O2 + N2
Cr + HClO3 = Cr(ClO3)3 + H2 =>
2 Cr + 6 HClO3 = 2 Cr(ClO3)3 + 3 H2
KNO3 + FeSO4 + H2SO4 = Fe2(SO4)3 + KHSO4 + NO + H2O =>
2 KNO3 + 6 FeSO4 + 5 H2SO4 = 3 Fe2(SO4)3 + 2 KHSO4 + 2 NO + 4 H2O
MgCO3 + Ca3(PO4)2 = Mg3(PO4)2 + CaCO3 =>
3 MgCO3 + Ca3(PO4)2 = Mg3(PO4)2 + 3 CaCO3
Na2OCO2 = Na2O2CO =>
Na2OCO2 = Na2O2CO
B3S2 = B + S8 =>
4 B3S2 = 12 B + S8
S + H2O = HS + OH =>
S + H2O = HS + OH
C4H6O5 + NaOH = C4H4Na2O5 + H2O =>
C4H6O5 + 2 NaOH = C4H4Na2O5 + 2 H2O
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