| Équations équilibrées la veille | Équations équilibrées le lendemain |
2 FeP + 3 Na2SO4 = Fe2(SO4)3 + 2 Na3P
FeCl2 + Na2Co3 = NaCl + FeCo3 =>
FeCl2 + Na2Co3 = 2 NaCl + FeCo3
H3BO3 + CuSO4 = Cu3(BO3)2 + H2SO4 =>
2 H3BO3 + 3 CuSO4 = Cu3(BO3)2 + 3 H2SO4
Na2O + (NH4)2SO4 = Na2SO4 + H2O + NH3 =>
Na2O + (NH4)2SO4 = Na2SO4 + H2O + 2 NH3
NaHCO3(s) + CH3COOH(l) = CO2(g) + H2O(l) + NaC2H3O2(s) =>
NaHCO3(s) + CH3COOH(l) = CO2(g) + H2O(l) + NaC2H3O2(s)
Ca(C2H3O2)2 + HCl = CaCl2(aq) + H(C2H3O2) =>
Ca(C2H3O2)2 + 2 HCl = CaCl2(aq) + 2 H(C2H3O2)
NaBr + Cl = NaCl + Br2 =>
2 NaBr + 2 Cl = 2 NaCl + Br2
CH3Cl + Na = CH3 + NaCl =>
CH3Cl + Na = CH3 + NaCl
Ba(NO3)2 + Al + S = BaO2 + Al2(SO4)3 + N =>
3 Ba(NO3)2 + 2 Al + 3 S = 3 BaO2 + Al2(SO4)3 + 6 N
Mg3N2 + HNO3 = Mg(NO3)3 + NO2 + H2O =>
Mg3N2 + 26 HNO3 = 3 Mg(NO3)3 + 19 NO2 + 13 H2O
MgO + Cu(NO3)2 = CuO + Mg(NO3)2 =>
MgO + Cu(NO3)2 = CuO + Mg(NO3)2
H2SO4 + NaOOCCH3 = H2O + CH3COO + NaSO3 =>
H2SO4 + NaOOCCH3 = H2O + CH3COO + NaSO3
PCl5 + NH3 = HCl + N3P3Cl6 =>
3 PCl5 + 3 NH3 = 9 HCl + N3P3Cl6
Na2CO3(s) + FeBr3(s) + H2O(l) = Fe(OH)3(s) + NaBr(s) + CO2(g) =>
3 Na2CO3(s) + 2 FeBr3(s) + 3 H2O(l) = 2 Fe(OH)3(s) + 6 NaBr(s) + 3 CO2(g)
Sn + H2O + NaOH = Na[Sn(OH)3] + H2 =>
Sn + 2 H2O + NaOH = Na[Sn(OH)3] + H2
C2H3LiO2 + CuCl2 = CuLiO2 + Cl2C2H3 =>
C2H3LiO2 + CuCl2 = CuLiO2 + Cl2C2H3
C2H12O + O = CO2 + H2O =>
C2H12O + 9 O = 2 CO2 + 6 H2O
Au + Ag(ClO4)3 = Ag + AuClO4 =>
3 Au + Ag(ClO4)3 = Ag + 3 AuClO4
C*2H*6 + O*2 = CO*2 + H*2O =>
C*2H*6 + 5 O*2 = CO*2 + 2 H*2O
MgO + Cu(NO3)2 = CuO + Mg(NO3)2 =>
MgO + Cu(NO3)2 = CuO + Mg(NO3)2
HOC(CH2CO2H)2 + CH4N2O = C13H11NO5 + H2O + O =>
10 HOC(CH2CO2H)2 + 2 CH4N2O = 4 C13H11NO5 + 17 H2O + 15 O
(NH4)2Fe(SO4)2*6H2O + NH4SCN + Cl2 = Fe(SCN)6*6H2O + (NH4)2SO4 + NH4Cl =>
(NH4)2Fe(SO4)2*6H2O + 6 NH4SCN + 2 Cl2 = Fe(SCN)6*6H2O + 2(NH4)2SO4 + 4 NH4Cl
{+} + + 6{+6} =>
6{+} = 6{+6}
ZnF + NaOH = NaF + ZnOH =>
ZnF + NaOH = NaF + ZnOH
FeS2 + O2 = Fe2O3 + SO2 =>
4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
Na2O + H2O = NaOH = O2 =>
Na2O + H2O = 2 NaOH
HCN + Co(OH)3 = Co(CN)3 + H2O =>
3 HCN + Co(OH)3 = Co(CN)3 + 3 H2O
C6H5COOH + H2O = H3O + C6H5COO =>
C6H5COOH + H2O = H3O + C6H5COO
Pb(NO3)2 + K2CrO4 = K2PbO4 + Cr(NO3)2 =>
Pb(NO3)2 + K2CrO4 = K2PbO4 + Cr(NO3)2
Cr(OH)3 + NaNO3 + H2O2 = HNO3 + H2O + Na2CrO4 =>
2 Cr(OH)3 + 4 NaNO3 + 3 H2O2 = 4 HNO3 + 4 H2O + 2 Na2CrO4
NaOH + H3Po4 = Na3Po4 + H2O =>
3 NaOH + H3Po4 = Na3Po4 + 3 H2O
NH4NO3 + NaOH = NH4OH + NaNO3 =>
NH4NO3 + NaOH = NH4OH + NaNO3
Ca + CuCl2 = CaCl2 + Cu =>
Ca + CuCl2 = CaCl2 + Cu
Na2B4O5(OH)4*8H2O + H2SO4 = B(OH)3 + Na2SO4 + H2O =>
Na2B4O5(OH)4*8H2O + H2SO4 = 4 B(OH)3 + Na2SO4 + 5 H2O
As2SO3 + O2 = As + SO4 =>
2 As2SO3 + O2 = 4 As + 2 SO4
H3BO3 + CuSO4 = Cu3(BO3)2 + H2SO4 =>
2 H3BO3 + 3 CuSO4 = Cu3(BO3)2 + 3 H2SO4
CrO2Cl2 + OH{-} = CrO4{-2} + Cl{-} + H2O =>
CrO2Cl2 + 4 OH{-} = CrO4{-2} + 2 Cl{-} + 2 H2O
K2 + Co2 = K2Co3 =>
2 K2 + 3 Co2 = 2 K2Co3
Al4C3 + SO2Cl2 = AlCl3 + CCl4 + SO2 =>
Al4C3 + 12 SO2Cl2 = 4 AlCl3 + 3 CCl4 + 12 SO2
FeS + HNO3 = SO2 + NO2 + Fe(NO3)3 + H2O =>
FeS + 10 HNO3 = SO2 + 7 NO2 + Fe(NO3)3 + 5 H2O
KMnO4 + SO3{2-} + H2O = MnO2 + SO4{2-} + KOH =>
2 KMnO4 + 3 SO3{2-} + H2O = 2 MnO2 + 3 SO4{2-} + 2 KOH
MgO + Cu(NO3)2 = CuO + Mg(NO3)2 =>
MgO + Cu(NO3)2 = CuO + Mg(NO3)2
LiOH + AgClO4 = LiClO4 + AgOH =>
LiOH + AgClO4 = LiClO4 + AgOH
MgSO4 = MgS + O2 =>
MgSO4 = MgS + 2 O2
I2O5 + BrF3 = IF5 + O2 + Br2 =>
6 I2O5 + 20 BrF3 = 12 IF5 + 15 O2 + 10 Br2
KOH + H3PO4 = K4PO4OH + H2O =>
4 KOH + H3PO4 = K4PO4OH + 3 H2O
C2H2205 + O2 = CO2 + H2O =>
4 C2H2205 + 2213 O2 = 8 CO2 + 4410 H2O
CuCl2 + Na2(CO3) = Na2Cl2 + Cu(CO3) =>
CuCl2 + Na2(CO3) = Na2Cl2 + Cu(CO3)
S8 + O2 = SO3 =>
S8 + 12 O2 = 8 SO3
K2(Cr2O7) + HI + HClO4 = Cr(ClO)3 + K(ClO4) + I2 + H2O =>
K2(Cr2O7) + 42 HI + 8 HClO4 = 2 Cr(ClO)3 + 2 K(ClO4) + 21 I2 + 25 H2O
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