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4 Fe + 3 O2 = 2 Fe2O3
SnCl2(aq) + NaOH = NaCl + Sn(OH)2 =>
SnCl2(aq) + 2 NaOH = 2 NaCl + Sn(OH)2
HS2 + O2 = SO2 + H2O =>
4 HS2 + 9 O2 = 8 SO2 + 2 H2O
Ba(NO3)2 + K2SO4 = Ba(SO4)2 + NO3K2 =>
Ba(NO3)2 + 2 K2SO4 = Ba(SO4)2 + 2 NO3K2
NaOH + BaCl2(aq) = Ba(OH)2(s) + NaCl(g) =>
2 NaOH + BaCl2(aq) = Ba(OH)2(s) + 2 NaCl(g)
Na + O2 = Na2O2 =>
2 Na + O2 = Na2O2
PCl5 + H2O = HCl + H3PO4 =>
PCl5 + 4 H2O = 5 HCl + H3PO4
NH4(NO3) + K2S = (NH4)2S + KNO3 =>
2 NH4(NO3) + K2S = (NH4)2S + 2 KNO3
Cd3(BO3)2 + H2O = H3(BO3) + Cd(OH)2 =>
Cd3(BO3)2 + 6 H2O = 2 H3(BO3) + 3 Cd(OH)2
CH3COOH + NaOH = NaCH3COO + H2O =>
CH3COOH + NaOH = NaCH3COO + H2O
CaCO3 + CO2 + HOH = Ca(HCO3)2 =>
CaCO3 + CO2 + HOH = Ca(HCO3)2
Na3PO4 + KOH = NaOH + K3PO4 =>
Na3PO4 + 3 KOH = 3 NaOH + K3PO4
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
Mn(C2H3O2)2 + Na2CO3 + H2O = CO2 + MnCO3Mn(OH)2 + NaC2H3O2 =>
2 Mn(C2H3O2)2 + 2 Na2CO3 + H2O = CO2 + MnCO3Mn(OH)2 + 4 NaC2H3O2
Ge + S = GeS =>
Ge + S = GeS
сера + озон = диоксидсеры =>
3 S + 2 O3 = 3 SO2
Co(NO3)2 + KNO2 + CH3COOH = K3[Co(NO2)6] + NO2 + CH3COOK + H2O =>
Co(NO3)2 + 7 KNO2 + 4 CH3COOH = K3[Co(NO2)6] + 3 NO2 + 4 CH3COOK + 2 H2O
NaNO3 + CH3COOH + C3H9N = CH3NO3 + NaC + H2O =>
4 NaNO3 + 3 CH3COOH + C3H9N = 5 CH3NO3 + 4 NaC + 3 H2O
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
Sb + I2 = SbI3 =>
2 Sb + 3 I2 = 2 SbI3
Fe2O3 + NH4NO2 = Fe(NO2)3 + (NH4)2O =>
Fe2O3 + 6 NH4NO2 = 2 Fe(NO2)3 + 3(NH4)2O
FeCl3 + NH4OH = Fe(OH)3 + NH4Cl =>
FeCl3 + 3 NH4OH = Fe(OH)3 + 3 NH4Cl
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
C + Ca(OH)2 = CaC2 + OH =>
2 C + Ca(OH)2 = CaC2 + 2 OH
Cu + HBr = H2 + CuBr2 =>
Cu + 2 HBr = H2 + CuBr2
IO3 + I + H = I2H2O =>
IO3 + 5 I + 6 H = 3 I2H2O
CO + O2 = CO2 =>
2 CO + O2 = 2 CO2
FeSO4 + CuCl2 = CuSO4 + FeCl2 =>
FeSO4 + CuCl2 = CuSO4 + FeCl2
CH4 + H2O = CO + H2 =>
CH4 + H2O = CO + 3 H2
K + B2O3 = K2O + B =>
6 K + B2O3 = 3 K2O + 2 B
Mg + HCl = MgCl2 + H2 =>
Mg + 2 HCl = MgCl2 + H2
Co2 + Ca(OH)2 = CaCo3 + OH =>
3 Co2 + 2 Ca(OH)2 = 2 CaCo3 + 4 OH
MgO + Si = Mg + SiO2 =>
2 MgO + Si = 2 Mg + SiO2
RbNO3 + BeF2 = Be(NO3)2 + RbF =>
2 RbNO3 + BeF2 = Be(NO3)2 + 2 RbF
LiCl + Br2 = LiBr + Cl2 =>
2 LiCl + Br2 = 2 LiBr + Cl2
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
CO + O2 = CO2 =>
2 CO + O2 = 2 CO2
Na2CO3 = Na + CO3 =>
Na2CO3 = 2 Na + CO3
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
C18H38 + O2 = CO2 + H2O =>
2 C18H38 + 55 O2 = 36 CO2 + 38 H2O
calciumhydroxide + carbondioxide = calciumcarbonate + water =>
Ca(OH)2 + CO2 = CaCO3 + H2O
K3[Cr(OH)6] + CrCl3 = Cr(OH)3 + KCl =>
K3[Cr(OH)6] + CrCl3 = 2 Cr(OH)3 + 3 KCl
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
Li3N + NH4NO3 = LiNO3 + (NH4)3N =>
Li3N + 3 NH4NO3 = 3 LiNO3 + (NH4)3N
Si2H3 + O2 = SiO2 + H2O =>
4 Si2H3 + 11 O2 = 8 SiO2 + 6 H2O
Zn + NaOH + H2O = NaZn(OH)4 + H2 =>
2 Zn + 2 NaOH + 6 H2O = 2 NaZn(OH)4 + 3 H2
Sn(NO3)2 + KOH = KNO3 + K2Sn(OH)4 =>
Sn(NO3)2 + 4 KOH = 2 KNO3 + K2Sn(OH)4
Zn + H2SO4 = ZnSO4 + H2 =>
Zn + H2SO4 = ZnSO4 + H2
NaCI + F2 = NaF + CI =>
2 NaCI + F2 = 2 NaF + 2 CI
Al + Fe2O3 = Al2O3 + Fe =>
2 Al + Fe2O3 = Al2O3 + 2 Fe
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