| Équations équilibrées la veille |
Fe2O3 + 3 C = 2 Fe + 3 CO
HMnO4 + Sr(OH)2 = H2O + Sr(MnO4)2 =>
2 HMnO4 + Sr(OH)2 = 2 H2O + Sr(MnO4)2
Cr2(SO4)3 + NaOH = Cr(OH)3 + Na2SO4 =>
Cr2(SO4)3 + 6 NaOH = 2 Cr(OH)3 + 3 Na2SO4
Cu + AgNO3 = Cu(NO3)2 + Ag =>
Cu + 2 AgNO3 = Cu(NO3)2 + 2 Ag
Ca(C2O4) + K(MnO4) + H2(SO4) = Ca(SO4) + Mn(SO4) + K2(SO4) + CO2 + H2O =>
5 Ca(C2O4) + 2 K(MnO4) + 8 H2(SO4) = 5 Ca(SO4) + 2 Mn(SO4) + K2(SO4) + 10 CO2 + 8 H2O
Pb(NO3)NaHCO3 = NaNO3Pb(HCO3) =>
Pb(NO3)NaHCO3 = NaNO3Pb(HCO3)
K2S + Pb(NO3)2 = PbS + KNO3 =>
K2S + Pb(NO3)2 = PbS + 2 KNO3
HCl + F2 = HF + Cl2 =>
2 HCl + F2 = 2 HF + Cl2
H(g) + NF3(g) = N3(g) + HF(g) =>
9 H(g) + 3 NF3(g) = N3(g) + 9 HF(g)
Cr(OH)3 + NaClO3 + NaOH = Na2CrO4 + NaCl + H2O =>
2 Cr(OH)3 + NaClO3 + 4 NaOH = 2 Na2CrO4 + NaCl + 5 H2O
Co(Cl)2 + (Na)2O2 + NaOH + H2O = Co(OH)3 + NaCl =>
2 Co(Cl)2 + (Na)2O2 + 2 NaOH + 2 H2O = 2 Co(OH)3 + 4 NaCl
HClO4 + P4O10 = H3PO4 + Cl2O7 =>
12 HClO4 + P4O10 = 4 H3PO4 + 6 Cl2O7
Al2 + Sr(NO3)2 = Al(NO3)3 + Sr =>
Al2 + 3 Sr(NO3)2 = 2 Al(NO3)3 + 3 Sr
BeSO4 + KOH = BeHSO4 + KO =>
BeSO4 + KOH = BeHSO4 + KO
SbCl2 + Na2S = SbS + NaCl =>
SbCl2 + Na2S = SbS + 2 NaCl
KBr(aq) + MgSO4(aq) = MgBr2 + K2SO4 =>
2 KBr(aq) + MgSO4(aq) = MgBr2 + K2SO4
Cr2(SO4)3 + KMnO4 + NaOH = Na2MnO4 + Na2CrO4 + K2SO4 + H2O =>
Cr2(SO4)3 + 6 KMnO4 + 16 NaOH = 6 Na2MnO4 + 2 Na2CrO4 + 3 K2SO4 + 8 H2O
MgBr2 + LiF = MgF2 + LiBr =>
MgBr2 + 2 LiF = MgF2 + 2 LiBr
NaNO3 + C = CO2 + NO + Na2O =>
4 NaNO3 + 3 C = 3 CO2 + 4 NO + 2 Na2O
Au + H2SO4 = Au2(SO4)3 + H2 =>
2 Au + 3 H2SO4 = Au2(SO4)3 + 3 H2
Cu + AgNO3 = Cu(NO3)2 + Ag =>
Cu + 2 AgNO3 = Cu(NO3)2 + 2 Ag
Ca(i) + V2O5(s) = V(i) + CaO(s) =>
5 Ca(i) + V2O5(s) = 2 V(i) + 5 CaO(s)
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
Mn{2+} + BiO3{-} = Bi{3} + MnO4{-} + e =>
3 Mn{2+} + 4 BiO3{-} = 4 Bi{3} + 3 MnO4{-} + 7e
KI + H2SO4 = K2SO4 + I2 + S + H2O =>
6 KI + 4 H2SO4 = 3 K2SO4 + 3 I2 + S + 4 H2O
CH3CH2I + (CH3CH2)2NH = N(CH2CH3)3 + (CH3CH2)2NH2I =>
CH3CH2I + 2(CH3CH2)2NH = N(CH2CH3)3 + (CH3CH2)2NH2I
Hg2CO3 = Hg + HgO + CO2 =>
Hg2CO3 = Hg + HgO + CO2
Co(NO3)2 + Na2Cr2O7 = CoCr2O7 + Na2(NO3)2 =>
Co(NO3)2 + Na2Cr2O7 = CoCr2O7 + Na2(NO3)2
NaBr + Al(NO3)3 = AlBr3 + NaNO3 =>
3 NaBr + Al(NO3)3 = AlBr3 + 3 NaNO3
Sn + KOH = Sn(OH)2 + K =>
Sn + 2 KOH = Sn(OH)2 + 2 K
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
CuO + H2 = Cu4 + H2O =>
4 CuO + 4 H2 = Cu4 + 4 H2O
NH4H2PO4 + Ba(OH)2 = BaHPO4 + NH3 + H2O =>
NH4H2PO4 + Ba(OH)2 = BaHPO4 + NH3 + 2 H2O
SO2 + HCl = SCl2 + H2O + Cl2 =>
SO2 + 4 HCl = SCl2 + 2 H2O + Cl2
Ca(CI)2 + AgNO3 = Ca(NO3)2 + AgCI =>
Ca(CI)2 + 2 AgNO3 = Ca(NO3)2 + 2 AgCI
KOH + Ni(NO3)3 = KNO3 + Ni(OH)3 =>
3 KOH + Ni(NO3)3 = 3 KNO3 + Ni(OH)3
Ba(OH)2 + SO2 = H2O + BaSO3 =>
Ba(OH)2 + SO2 = H2O + BaSO3
Mg + Cu4SO4 = Mg2SO4 + Cu =>
2 Mg + Cu4SO4 = Mg2SO4 + 4 Cu
SO2 + BaO2 = BaSO4 =>
SO2 + BaO2 = BaSO4
Au + HCl = Au3Cl + H =>
3 Au + HCl = Au3Cl + H
Cr(NO3)2 + HNO3 = Cr(NO3)3 + H2O + NO =>
3 Cr(NO3)2 + 4 HNO3 = 3 Cr(NO3)3 + 2 H2O + NO
HC3H3O2(aq) + Ca(OH)2(aq) = H2O(l) + Ca(C2H3O2)2(aq) =>
4 HC3H3O2(aq) + 3 Ca(OH)2(aq) = 2 H2O(l) + 3 Ca(C2H3O2)2(aq)
Al(OH)3 + SiF4 = AlF3 + Si(OH)4 =>
4 Al(OH)3 + 3 SiF4 = 4 AlF3 + 3 Si(OH)4
Sn(SO4)2 + Mg = MgSO4 + Sn =>
Sn(SO4)2 + 2 Mg = 2 MgSO4 + Sn
NiSO4 + BaBr = BaSO4 + NiBr =>
NiSO4 + BaBr = BaSO4 + NiBr
K2S2O8 + KBr + H2O = KBrO3 + H2SO4 + KOH =>
3 K2S2O8 + KBr + 9 H2O = KBrO3 + 6 H2SO4 + 6 KOH
Cu(OH)2 + N = Cu + NOH =>
Cu(OH)2 + 2 N = Cu + 2 NOH
Na + HClO3 = NaClO3 + ClO + H2O =>
3 Na + 4 HClO3 = 3 NaClO3 + ClO + 2 H2O
KH + CO3 = KHCO3 =>
KH + CO3 = KHCO3
propene + KMnO4 + water = C3H8O2 + KOH + MnO2 =>
3 CH3CHCH2 + 2 KMnO4 + 4 H2O = 3 C3H8O2 + 2 KOH + 2 MnO2
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