Équations équilibrées la veille |
SnO2(s) + 2 H2(g) = Sn(s) + 2 H2O
SiO2 + Na2CO3 = Na2SiO3 + CO2 =>
SiO2 + Na2CO3 = Na2SiO3 + CO2
Rb + Br2 = Rb2Br =>
4 Rb + Br2 = 2 Rb2Br
Pt + NaBr = PtBr + Na =>
Pt + NaBr = PtBr + Na
(CH3CH2)2NH + HCl = (CH3CH2)2NH2 + Cl =>
(CH3CH2)2NH + HCl = (CH3CH2)2NH2 + Cl
CH3NH2 + CS2 + NaOH = CH3NHCS2Na + H2O =>
CH3NH2 + CS2 + NaOH = CH3NHCS2Na + H2O
NaI(aq) + Cu(NO3)2(aq) = CuI(s) + I2(s) + NaNO3(aq) =>
4 NaI(aq) + 2 Cu(NO3)2(aq) = 2 CuI(s) + I2(s) + 4 NaNO3(aq)
Cu(NO3)2(aq) + NaI(aq) = CuI(s) + I2(aq) + NaNO3(aq) =>
2 Cu(NO3)2(aq) + 4 NaI(aq) = 2 CuI(s) + I2(aq) + 4 NaNO3(aq)
FeOH2 + HNO3 = FeNO3 + HOH2 =>
FeOH2 + HNO3 = FeNO3 + HOH2
Pt + NaBr = NaPt + Br =>
Pt + NaBr = NaPt + Br
Cu(NO3)2(aq) + NaI(aq) = CuI(s) + I2(aq) + NaNO3(aq) =>
2 Cu(NO3)2(aq) + 4 NaI(aq) = 2 CuI(s) + I2(aq) + 4 NaNO3(aq)
K2CV2O7 + H2SO4 = K2SO4 + CV2(SO4)3 + H2O + O2 =>
2 K2CV2O7 + 8 H2SO4 = 2 K2SO4 + 2 CV2(SO4)3 + 8 H2O + 3 O2
Cu(NO3)2(aq) + NaI(aq) = CuI(s) + I2(aq) + NaNO3(aq) =>
2 Cu(NO3)2(aq) + 4 NaI(aq) = 2 CuI(s) + I2(aq) + 4 NaNO3(aq)
Mg2N3 = N + MgN =>
Mg2N3 = N + 2 MgN
H2SO4 + KI = H2S + I2 + H2O + K2SO4 =>
5 H2SO4 + 8 KI = H2S + 4 I2 + 4 H2O + 4 K2SO4
Cu(NO3)2(aq) + NaI(aq) = CuI2(aq) + NaNO3(aq) =>
Cu(NO3)2(aq) + 2 NaI(aq) = CuI2(aq) + 2 NaNO3(aq)
H2TeO3 + Pt(OH)4 = Pt(HTeO3)4 + H2O =>
4 H2TeO3 + Pt(OH)4 = Pt(HTeO3)4 + 4 H2O
Zn(OH)2 + Ba(OH)2 = BaZn(OH)4 =>
Zn(OH)2 + Ba(OH)2 = BaZn(OH)4
C2H5Cl + Al = (C2H5)3Al2Cl3 =>
3 C2H5Cl + 2 Al = (C2H5)3Al2Cl3
Ca3(PO4)2 + SiO2 = P4O10 + CaSiO3 =>
2 Ca3(PO4)2 + 6 SiO2 = P4O10 + 6 CaSiO3
C12H22O11 + C2H5OH + HNO3 = C10H9O2N + H2O =>
5 C12H22O11 + 30 C2H5OH + 12 HNO3 = 12 C10H9O2N + 97 H2O
Cu(NO3)2(aq) + NaI(aq) = CuI(s) + Na(NO3)2(aq) =>
Cu(NO3)2(aq) + NaI(aq) = CuI(s) + Na(NO3)2(aq)
NaOH + CO = HCOONa =>
NaOH + CO = HCOONa
H2 + S = HS =>
H2 + 2 S = 2 HS
Cu(NO3)2(aq) + NaI(aq) = CuI(s) + Na(NO3)2(aq) =>
Cu(NO3)2(aq) + NaI(aq) = CuI(s) + Na(NO3)2(aq)
Cu(NO3)2(aq) + NaI(aq) = CuI2 + NaNO3 =>
Cu(NO3)2(aq) + 2 NaI(aq) = CuI2 + 2 NaNO3
Zn + Fe2Cl3 = Zn2Cl + Fe =>
6 Zn + Fe2Cl3 = 3 Zn2Cl + 2 Fe
Si + NaOH = Si(OH)2 + Na =>
Si + 2 NaOH = Si(OH)2 + 2 Na
MgOH2 + H2SO4 = MgSO4 + OH + H2 =>
2 MgOH2 + 2 H2SO4 = 2 MgSO4 + 2 OH + 3 H2
Al2(SO4)3 + CuSO4 = Cu(SO4)3 + Al2SO4 =>
Al2(SO4)3 + CuSO4 = Cu(SO4)3 + Al2SO4
Cu(NO3)2(aq) + NaI(aq) = CuI2(s) + NaNO3(aq) =>
Cu(NO3)2(aq) + 2 NaI(aq) = CuI2(s) + 2 NaNO3(aq)
Hg2(ClO3)2 + SrCl2 = Hg2Cl2 + Sr(ClO3)2 =>
Hg2(ClO3)2 + SrCl2 = Hg2Cl2 + Sr(ClO3)2
NaI(aq) + Cu(NO3)2(aq) = CuI2 + NaNO3(aq) =>
2 NaI(aq) + Cu(NO3)2(aq) = CuI2 + 2 NaNO3(aq)
Si + NaOH = NaSiO + H =>
Si + NaOH = NaSiO + H
H2Cr2O7 + H2O = HCr2O7 + H3O =>
H2Cr2O7 + H2O = HCr2O7 + H3O
NaI(aq) + Cu(NO3)2(aq) = CuI(s) + I2(s) + NaNO3(aq) =>
4 NaI(aq) + 2 Cu(NO3)2(aq) = 2 CuI(s) + I2(s) + 4 NaNO3(aq)
CH3COOH + Mg(HCO3)2 = (CH3COO)2Mg + H2O + CO2 =>
2 CH3COOH + Mg(HCO3)2 = (CH3COO)2Mg + 2 H2O + 2 CO2
Cu(NO3)2(aq) + NaI(aq) = CuI2(aq) + NaNO3(aq) =>
Cu(NO3)2(aq) + 2 NaI(aq) = CuI2(aq) + 2 NaNO3(aq)
CO2*H2O = H2CO3 =>
CO2*H2O = H2CO3
Si + NaOH = NaSiO + H2 =>
2 Si + 2 NaOH = 2 NaSiO + H2
KCN + K2CrO4 + HCl = KNO3 + K2CO3 + CrCl3 + KCl + H2O =>
3 KCN + 10 K2CrO4 + 44 HCl = 3 KNO3 + 3 K2CO3 + 10 CrCl3 + 14 KCl + 22 H2O
SiO + C2 = Si + CO =>
2 SiO + C2 = 2 Si + 2 CO
(CH3O)2C6H3CHO + C9H8O = C18H16O3 + H2O =>
(CH3O)2C6H3CHO + C9H8O = C18H16O3 + H2O
Fe2O3(s) + Al(g) = Fe(s) + Al2O3(g) =>
Fe2O3(s) + 2 Al(g) = 2 Fe(s) + Al2O3(g)
H2Cr2O7 + H2O = H3O + Cr2O7 =>
H2Cr2O7 + 2 H2O = 2 H3O + Cr2O7
Na2CO3 + H2C4H4O6 = CO2 + H2O + Na2C4H4O6 =>
Na2CO3 + H2C4H4O6 = CO2 + H2O + Na2C4H4O6
Si + NaOH = SiO2 + Na + H2 =>
Si + 2 NaOH = SiO2 + 2 Na + H2
K2Cr2O7 + H2SO4 + CH3OH = Cr2(SO4)3 + HCHO + K2SO4 + H2O =>
K2Cr2O7 + 4 H2SO4 + 3 CH3OH = Cr2(SO4)3 + 3 HCHO + K2SO4 + 7 H2O
Cu(NO3)2(aq) + NaI(aq) = CuI2 + NaNO3 =>
Cu(NO3)2(aq) + 2 NaI(aq) = CuI2 + 2 NaNO3
Na2O(s) + H2O = NaOH(ac) =>
Na2O(s) + H2O = 2 NaOH(ac)
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