Équations équilibrées la veille |
As2O5 + 8 H2SO4 + 8 Zn = 2 AsH3 + 5 H2O + 8 ZnSO4
Cr + H3PO4 = Cr(PO4)2 + H2 =>
Cr + 2 H3PO4 = Cr(PO4)2 + 3 H2
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
Os + O = OsO =>
Os + O = OsO
Pb(NO3)2(aq) + K2(CrO4)(aq) = Pb(CrO4)(aq) + K(NO3)(aq) =>
Pb(NO3)2(aq) + K2(CrO4)(aq) = Pb(CrO4)(aq) + 2 K(NO3)(aq)
Cr2O3 + CaCO3 = Ca(CrO2)2 + CO2 =>
Cr2O3 + CaCO3 = Ca(CrO2)2 + CO2
MgO + Al = Mg + AlO =>
MgO + Al = Mg + AlO
C8H6O4 + NaHCO3 = CO2 + C8H4O4Na2 + H2 =>
7 C8H6O4 + 12 NaHCO3 = 20 CO2 + 6 C8H4O4Na2 + 15 H2
C3H6 + Br2 = C3H4Br + H2Br =>
C3H6 + Br2 = C3H4Br + H2Br
Na2CO3 + Cr(C2H3O2)3 = Na(C2H3O2) + Cr2(CO3)3 =>
3 Na2CO3 + 2 Cr(C2H3O2)3 = 6 Na(C2H3O2) + Cr2(CO3)3
CdO + Se = CdSe + O2 =>
2 CdO + 2 Se = 2 CdSe + O2
C21H42O + O2 = CO2 + H2O =>
C21H42O + 31 O2 = 21 CO2 + 21 H2O
ZnNo3 + Na2Co3 = ZnCo3 + Na2No3 =>
ZnNo3 + Na2Co3 = ZnCo3 + Na2No3
Li3PO4 + NiCl2 = Ni3(PO4)2 + LiCl =>
2 Li3PO4 + 3 NiCl2 = Ni3(PO4)2 + 6 LiCl
CuCl2 + KOH = Cu(OH)2 + KCl =>
CuCl2 + 2 KOH = Cu(OH)2 + 2 KCl
HCN(g) = N2 + C + H2 =>
2 HCN(g) = N2 + 2 C + H2
CuO + NH4OH + (NH4)2SO4 = Cu(NH3)4SO4 + H2O =>
CuO + 2 NH4OH + (NH4)2SO4 = Cu(NH3)4SO4 + 3 H2O
Al + H2SO4 = Al2(SO4)3 + H2 =>
2 Al + 3 H2SO4 = Al2(SO4)3 + 3 H2
KMnO4 + C2O4H2 = Mn + K + H2O + CO2 =>
KMnO4 + 4 C2O4H2 = Mn + K + 4 H2O + 8 CO2
NH4H2PO4 + NdCl3 = Nd2O3 + P2O5 + NH4Cl + H2O =>
6 NH4H2PO4 + 2 NdCl3 = Nd2O3 + 3 P2O5 + 6 NH4Cl + 6 H2O
Al(OH)3 = (Al2O3) + H2O =>
2 Al(OH)3 = (Al2O3) + 3 H2O
C7H10N + O2 = CO2 + H2O + NO2 =>
2 C7H10N + 21 O2 = 14 CO2 + 10 H2O + 2 NO2
V(OH)3 + O2 + OH{-} = VO4{3-} + H2O =>
2 V(OH)3 + O2 + 6 OH{-} = 2 VO4{3-} + 6 H2O
CuCl2 + Na2O = NaCl + CuO =>
CuCl2 + Na2O = 2 NaCl + CuO
K2ONa2CO3 = K2CO3Na2O =>
K2ONa2CO3 = K2CO3Na2O
Al(OH)3 + HBr = AlBr3 + H2O =>
Al(OH)3 + 3 HBr = AlBr3 + 3 H2O
Al + Fe2O3 = Al2O3 + Fe =>
2 Al + Fe2O3 = Al2O3 + 2 Fe
Mg + S4 = MgS =>
4 Mg + S4 = 4 MgS
Mg(OH)2 + AgNO3 = Ag(OH)2 + MgNO3 =>
Mg(OH)2 + AgNO3 = Ag(OH)2 + MgNO3
Cr2O7(NH4)2 = Cr(OH)3 + N2 + H2O =>
Cr2O7(NH4)2 = 2 Cr(OH)3 + N2 + H2O
Pb(NO3)2 + Li2SO4(aq) = PbSO4(s) + LiNO3(aq) =>
Pb(NO3)2 + Li2SO4(aq) = PbSO4(s) + 2 LiNO3(aq)
Fe(OH)3 + C6H8O7 = Fe + CO2 + H2O =>
6 Fe(OH)3 + C6H8O7 = 6 Fe + 6 CO2 + 13 H2O
Ca(C2H3O2)2 + K2SO4 = CaSO4 + K2(C2H3O2)2 =>
Ca(C2H3O2)2 + K2SO4 = CaSO4 + K2(C2H3O2)2
Ba + Sr(NO3)2 = BaSr(NO3)2 =>
Ba + Sr(NO3)2 = BaSr(NO3)2
C + Hg = CHg =>
C + Hg = CHg
KNO3 + KSO4 = K2O + N2 + SO4 =>
2 KNO3 + 10 KSO4 = 6 K2O + N2 + 10 SO4
Ca(OH)2 + H3PO4 = Ca3(PO4)2 + H2O =>
3 Ca(OH)2 + 2 H3PO4 = Ca3(PO4)2 + 6 H2O
AgCO3 + KBr = AgBr + KCO3 =>
AgCO3 + KBr = AgBr + KCO3
Ca(OH)2 + H3PO4 = Ca3(PO4)2 + H2O =>
3 Ca(OH)2 + 2 H3PO4 = Ca3(PO4)2 + 6 H2O
CH3CH3CH3CH3CH3COOH + O2 = CO2 + H2O =>
CH3CH3CH3CH3CH3COOH + 9 O2 = 6 CO2 + 8 H2O
C4H10 = C + H =>
C4H10 = 4 C + 10 H
Cl2 + KBr = KCl + Br2 =>
Cl2 + 2 KBr = 2 KCl + Br2
Cr(OH)3 + NH4OH = [Cr(NH3)6](OH)3 + H2O =>
Cr(OH)3 + 6 NH4OH = [Cr(NH3)6](OH)3 + 6 H2O
Na2O2 + H2O = NaOH + O2 =>
2 Na2O2 + 2 H2O = 4 NaOH + O2
CrO3 + H2 = CrO2 + H2O =>
CrO3 + H2 = CrO2 + H2O
XHCl + XCa = XCaCl + XH =>
XHCl + XCa = XCaCl + XH
ZnMnO4 + HBr = ZnBr + Br2 + MnBr2 + H2O =>
2 ZnMnO4 + 16 HBr = 2 ZnBr + 5 Br2 + 2 MnBr2 + 8 H2O
K + NaOH = KOH + Na =>
K + NaOH = KOH + Na
H{+} + Cr2O7{2-} + H2S = Cr{3+} + S + H2O =>
8 H{+} + Cr2O7{2-} + 3 H2S = 2 Cr{3+} + 3 S + 7 H2O
CuO + Ni = Cu + NiO =>
CuO + Ni = Cu + NiO
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