| Équations équilibrées la veille | Équations équilibrées le lendemain |
4 CuS + 5 O2 = 2 Cu2O + 4 SO2
CrCl2 + H2O2 + NaOH = Na2CrO4 + NaCl + H2O =>
CrCl2 + 2 H2O2 + 4 NaOH = Na2CrO4 + 2 NaCl + 4 H2O
SrCl2*6H2O + CuSO4*5H2O = SrSO4 + CuCl2 + H2O =>
SrCl2*6H2O + CuSO4*5H2O = SrSO4 + CuCl2 + 11 H2O
Cr2O5 + H2 = Cr + H2O =>
Cr2O5 + 5 H2 = 2 Cr + 5 H2O
KPO4 + BaCl2 = KCl2 + BaPO4 =>
KPO4 + BaCl2 = KCl2 + BaPO4
MgCl2(aq) + AgNO3(aq) = Mg(NO3)2(aq) + AgCl(s) =>
MgCl2(aq) + 2 AgNO3(aq) = Mg(NO3)2(aq) + 2 AgCl(s)
Al(s) + KOH(aq) + H2O(l) + H2SO4(aq) = KAl(SO4)2*12H2O(s) + H2(g) =>
2 Al(s) + 2 KOH(aq) + 22 H2O(l) + 4 H2SO4(aq) = 2 KAl(SO4)2*12H2O(s) + 3 H2(g)
C25H52 + O2 = CO2 + water =>
C25H52 + 38 O2 = 25 CO2 + 26 H2O
NH4Cl + Ca(NO3)2*4H2O = H2O + CaCl2 + NH4NO3 =>
2 NH4Cl + Ca(NO3)2*4H2O = 4 H2O + CaCl2 + 2 NH4NO3
C10H2 + O2 = H2O + CO2 =>
2 C10H2 + 21 O2 = 2 H2O + 20 CO2
C18H12O3 + O2 = CO2 + H2O =>
2 C18H12O3 + 39 O2 = 36 CO2 + 12 H2O
K2CrO4 + H2SO4 + H2S = K2SO4 + Cr2(SO4)3 + H2O =>
8 K2CrO4 + 17 H2SO4 + 3 H2S = 8 K2SO4 + 4 Cr2(SO4)3 + 20 H2O
FeCl3 + NaOH = Fe(OH)3 + NaCl =>
FeCl3 + 3 NaOH = Fe(OH)3 + 3 NaCl
Co + Cl2 + NaOH = NaCl + Co(OH)2 =>
Co + Cl2 + 2 NaOH = 2 NaCl + Co(OH)2
C2H5OH + O2 = CO2 + H3O2 =>
2 C2H5OH + 7 O2 = 4 CO2 + 4 H3O2
Fe2O(s) + H2(g) = Fe(s) + H2O(g) =>
Fe2O(s) + H2(g) = 2 Fe(s) + H2O(g)
H2NCSNH2 + Bi{3+} = Bi(HNCSNH2)3 + H{+} =>
3 H2NCSNH2 + Bi{3+} = Bi(HNCSNH2)3 + 3 H{+}
C10H22 + O2 = H2O + CO2 =>
2 C10H22 + 31 O2 = 22 H2O + 20 CO2
BiCl3 + Na[Sn(OH)] + NaOH = Bi + Na2[Sn(OH)6] + NaCl =>
4 BiCl3 + 3 Na[Sn(OH)] + 15 NaOH = 4 Bi + 3 Na2[Sn(OH)6] + 12 NaCl
K2Cu(SO4)2 + H2O = KOH + Cu(OH)2 + H2SO4 =>
K2Cu(SO4)2 + 4 H2O = 2 KOH + Cu(OH)2 + 2 H2SO4
Fe2 + H2SO4 + K2Cr2O7 = Fe2(SO4)3 + K2SO4 + Cr2(SO4)3 + H2O =>
Fe2 + 7 H2SO4 + K2Cr2O7 = Fe2(SO4)3 + K2SO4 + Cr2(SO4)3 + 7 H2O
C2H2 + Cl = C + HCl =>
C2H2 + 2 Cl = 2 C + 2 HCl
Al + H2SO4 = Al2(SO4)3 + H2 =>
2 Al + 3 H2SO4 = Al2(SO4)3 + 3 H2
Fe(NO3)3 + MgO = Fe2O3 + Mg(NO3)2 =>
2 Fe(NO3)3 + 3 MgO = Fe2O3 + 3 Mg(NO3)2
CH3CHCHCH2CH3 + KMnO4 + H2O = CH3CHOHCHOHCH2CH3 + MnO2 + KOH =>
3 CH3CHCHCH2CH3 + 2 KMnO4 + 4 H2O = 3 CH3CHOHCHOHCH2CH3 + 2 MnO2 + 2 KOH
C{-4} = e + C{+4} =>
C{-4} = 8e + C{+4}
NaHCO3 + CaO = CaCO3 + NaOH =>
NaHCO3 + CaO = CaCO3 + NaOH
Ag2O + C = Ag + CO2(g) =>
2 Ag2O + C = 4 Ag + CO2(g)
Fe + H2SO4 = SO + Fe2(SO4)3 + H2O =>
4 Fe + 9 H2SO4 = 3 SO + 2 Fe2(SO4)3 + 9 H2O
H2CO3(aq) + Ca(OH)2(s) = H2O(l) + CaCO3(s) =>
H2CO3(aq) + Ca(OH)2(s) = 2 H2O(l) + CaCO3(s)
ClF3 + CH4 + O2 = HCl + HF + CO2 =>
ClF3 + CH4 + O2 = HCl + 3 HF + CO2
CH3CH2NH2 + CO2 + H2O = (NH4)2CO3 + C4H10 =>
26 CH3CH2NH2 + 9 CO2 + 21 H2O = 13(NH4)2CO3 + 12 C4H10
HCl(ac) + Cr(s) = CrCl3(ac) + H2(s) =>
6 HCl(ac) + 2 Cr(s) = 2 CrCl3(ac) + 3 H2(s)
C16H34 = C + C4H10 =>
5 C16H34 = 12 C + 17 C4H10
KCl(aq) + Na3(Co(NO2)6)(aq) = K3(Co(NO2)6)(s) + NaCl(aq) =>
3 KCl(aq) + Na3(Co(NO2)6)(aq) = K3(Co(NO2)6)(s) + 3 NaCl(aq)
K(O)(H) + H3(PO4) = K3(PO4) + H2(O) =>
3 K(O)(H) + H3(PO4) = K3(PO4) + 3 H2(O)
NH4OH + H3PO = (NH4)3PO + H2O =>
3 NH4OH + H3PO = (NH4)3PO + 3 H2O
H4P2O7 + Ca(OH)2 = Ca4(P2O7)2 + H2O =>
2 H4P2O7 + 4 Ca(OH)2 = Ca4(P2O7)2 + 8 H2O
NiCl2*6H2O + NH4OH = Ni(OH)2 + NH4Cl + H2O =>
NiCl2*6H2O + 2 NH4OH = Ni(OH)2 + 2 NH4Cl + 6 H2O
HNO2 + NaNO2 = HNa + NO2 =>
HNO2 + NaNO2 = HNa + 2 NO2
HClO3 + BOH = BClO3 + H2O =>
HClO3 + BOH = BClO3 + H2O
KBrO3 = KBr + O2 =>
2 KBrO3 = 2 KBr + 3 O2
KOH + H3PO4 = K3PO4 + H2O =>
3 KOH + H3PO4 = K3PO4 + 3 H2O
Cr(CO)6 + KOH = KHCr2(CO)10 + K2CO3 + KHCOO + H2O =>
2 Cr(CO)6 + 4 KOH = KHCr2(CO)10 + K2CO3 + KHCOO + H2O
Mn + O2 = Mn2O3 =>
4 Mn + 3 O2 = 2 Mn2O3
Cu + HNO3 = Cu(NO3)2 + NO + H2O =>
3 Cu + 8 HNO3 = 3 Cu(NO3)2 + 2 NO + 4 H2O
C10H22 + O2 = H2O + CO2 =>
2 C10H22 + 31 O2 = 22 H2O + 20 CO2
CHOOK + HCl = CHOOCl + K + H =>
CHOOK + HCl = CHOOCl + K + H
K4Si = K + Si =>
K4Si = 4 K + Si
C5H12 + O2 = CO2 + H2O =>
C5H12 + 8 O2 = 5 CO2 + 6 H2O
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