Équations équilibrées la veille |
Ba2 = 2 Ba
CuSe + HNO3 = NO + Cu(NO3)2 + Se + H2O =>
3 CuSe + 8 HNO3 = 2 NO + 3 Cu(NO3)2 + 3 Se + 4 H2O
K2C2O4 + BaBr2 = BaC2O4 + K2Br2 =>
K2C2O4 + BaBr2 = BaC2O4 + K2Br2
Al2O3 + Cu2SO4 = Al2(SO4)3 + Cu2O =>
Al2O3 + 3 Cu2SO4 = Al2(SO4)3 + 3 Cu2O
K2CO3 + NaNO3 = KNO3 + Na2CO3 =>
K2CO3 + 2 NaNO3 = 2 KNO3 + Na2CO3
C + AgNO3 = C4(NO3)2 + Ag =>
4 C + 2 AgNO3 = C4(NO3)2 + 2 Ag
CH3COOH + CO(NH2)2 = C2H5NO + CO2 + H2O =>
2 CH3COOH + CO(NH2)2 = 2 C2H5NO + CO2 + H2O
KMnO4 + Na2S + H2O = K(OH) + MnO + Na(OH) + S =>
2 KMnO4 + 5 Na2S + 6 H2O = 2 K(OH) + 2 MnO + 10 Na(OH) + 5 S
OH + Cu2 = Cu(OH)2 =>
4 OH + Cu2 = 2 Cu(OH)2
Ni(NO3)2 + Zn = Ni2 + Zn(NO3) =>
2 Ni(NO3)2 + 4 Zn = Ni2 + 4 Zn(NO3)
Cu + AgNO3(aq) = Ag + Cu(NO3)2 =>
Cu + 2 AgNO3(aq) = 2 Ag + Cu(NO3)2
NaClO + NaNa2S2O3 + NaOH = Na2SO4 + NaCl + H2O =>
9 NaClO + 2 NaNa2S2O3 + 2 NaOH = 4 Na2SO4 + 9 NaCl + H2O
Na2CO3 + HCl = NaCl + H2O(l) + CO2 =>
Na2CO3 + 2 HCl = 2 NaCl + H2O(l) + CO2
OCl + HCl = HClO + Cl2 =>
2 OCl + 2 HCl = 2 HClO + Cl2
MgCa(CO3)2 + SiO2 = CaCO3 + CO2 + MgSiO3 =>
MgCa(CO3)2 + SiO2 = CaCO3 + CO2 + MgSiO3
Mg(HCO3)2(aq) + HNO3(aq) = Mg(NO3)2(aq) + CO2(g) + H2O(l) =>
Mg(HCO3)2(aq) + 2 HNO3(aq) = Mg(NO3)2(aq) + 2 CO2(g) + 2 H2O(l)
H2S + CuSO4 = CuS + SO3 + H2O =>
H2S + CuSO4 = CuS + SO3 + H2O
Fe(OH)2 + H3PO4 = Fe3(PO4)2 + H2O =>
3 Fe(OH)2 + 2 H3PO4 = Fe3(PO4)2 + 6 H2O
CO + CaO = CaC2 + O2 =>
4 CO + 2 CaO = 2 CaC2 + 3 O2
(NH4)2[SnCl6] + H2O = (NH4)2[SnCl5(OH)] + HCl =>
(NH4)2[SnCl6] + H2O = (NH4)2[SnCl5(OH)] + HCl
Fe + H2SO4 = Fe2(SO4)3 + H2 =>
2 Fe + 3 H2SO4 = Fe2(SO4)3 + 3 H2
AgSO4 + K3[Fe(CN)6] = K2SO4 + Ag3[Fe(CN)6]2 =>
3 AgSO4 + 2 K3[Fe(CN)6] = 3 K2SO4 + Ag3[Fe(CN)6]2
PB(NO3)2 + NaOH = NaNO3 + PB(OH)2 =>
PB(NO3)2 + 2 NaOH = 2 NaNO3 + PB(OH)2
H2(g) + Br2 = HBr =>
H2(g) + Br2 = 2 HBr
Mg2SiO4 + NaOH + H2O = Mg(OH)2 + Na2O*2SiO2 =>
2 Mg2SiO4 + 2 NaOH + 3 H2O = 4 Mg(OH)2 + Na2O*2SiO2
TiO2(s) + H2(g) = Ti2O(s) + H2O(g) =>
2 TiO2(s) + 3 H2(g) = Ti2O(s) + 3 H2O(g)
Ni + H2 = H2Ni =>
Ni + H2 = H2Ni
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
Cl + FeI2 = FeCl3 + I =>
3 Cl + FeI2 = FeCl3 + 2 I
H2SO4 + BaS = H2S + BaSO4 =>
H2SO4 + BaS = H2S + BaSO4
(NH4)2(CO3) = water + NH3 + CO2 =>
(NH4)2(CO3) = H2O + 2 NH3 + CO2
Zn(s) + Fe(NH4)2(SO4)2(aq) = Fe(s) + Zn(NH4)2(SO4)2(aq) =>
Zn(s) + Fe(NH4)2(SO4)2(aq) = Fe(s) + Zn(NH4)2(SO4)2(aq)
KClO4 + HCl + H2SO4 = Cl2 + KHSO4 + H2O =>
KClO4 + 7 HCl + H2SO4 = 4 Cl2 + KHSO4 + 4 H2O
NH3 + C3H8 + O2 = CO(NH2)2 + H2O =>
6 NH3 + C3H8 + 5 O2 = 3 CO(NH2)2 + 7 H2O
(NH4)2SO4 + CaCI2 = (NH4)2CI2 + CaSO4 =>
(NH4)2SO4 + CaCI2 = (NH4)2CI2 + CaSO4
Na2SiO3 + Na2SiF6 + H2O = Si(OH)4 + NaF =>
2 Na2SiO3 + Na2SiF6 + 6 H2O = 3 Si(OH)4 + 6 NaF
C2H6 + O2 = C + H2O3 =>
2 C2H6 + 9 O2 = 4 C + 6 H2O3
CH3CH3 + HNO3 = CH3CH2NO2 + H2O =>
CH3CH3 + HNO3 = CH3CH2NO2 + H2O
Pb(NO3)2(aq) + K(s) = Pb(s) + KNO3(aq) =>
Pb(NO3)2(aq) + 2 K(s) = Pb(s) + 2 KNO3(aq)
Na2CO3 + Co2(NO3)2 = Na2(NO3)2 + Co2CO3 =>
Na2CO3 + Co2(NO3)2 = Na2(NO3)2 + Co2CO3
K2O + MnO + Fe2O3 = KMnO4 + FeO =>
K2O + 2 MnO + 5 Fe2O3 = 2 KMnO4 + 10 FeO
NH4Cl + Ni(CO3) = (NH4)2CO3 + NiCl2 =>
2 NH4Cl + Ni(CO3) = (NH4)2CO3 + NiCl2
Co(NO3)2 + NH4Cl = CoCl2 + NH4NO3 =>
Co(NO3)2 + 2 NH4Cl = CoCl2 + 2 NH4NO3
SO3 + H2O = SO3(OH)2 + H2 =>
SO3 + 2 H2O = SO3(OH)2 + H2
C + Mg = CMg2 =>
C + 2 Mg = CMg2
P2O5 + HCl = PCl3 + H2O + Cl2 =>
P2O5 + 10 HCl = 2 PCl3 + 5 H2O + 2 Cl2
NO2 = N2O4 = O2 =>
2 NO2 = N2O4
Fe(ClO3)3 + Ge(C2O4)2 = Fe2(C2O4)3 + Ge(ClO3)4 =>
4 Fe(ClO3)3 + 3 Ge(C2O4)2 = 2 Fe2(C2O4)3 + 3 Ge(ClO3)4
Zn(s) + HNO3(aq) = Zn(NO3) + H2O(l) + N2O(g) =>
8 Zn(s) + 10 HNO3(aq) = 8 Zn(NO3) + 5 H2O(l) + N2O(g)
HCH2ClCO2 + NaOH = NaCH2ClCO2 + H2O =>
HCH2ClCO2 + NaOH = NaCH2ClCO2 + H2O
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