Question

Egalarea ecuatiilor chimice
H2 + CuO = Cu + H2O
S + O2 = SO2
SO2 + O2 = SO3
H2O + SO3 = H2SO4
Na + H2O = NaOH + H2
Ca(OH) 2 + CO2 = CaCO3 + H2O
Mg + HCl = MgCl2 + H2
MgO + HCl = MgCl2 + H2O
KOH + H2SO4 = K2SO4 + H2O
K + H2SO4 = K2SO4 + H2
Al + H2SO4 = Al2(SO4)3 + H2
Al + HCl = AlCl3 + H2
Al2O3 + HCl = AlCl3 + H2O
Cu(OH)2 + HCl = CuCl2 + H2O
Al(OH)3 + HCl = AlCl3 + H2O
Al(OH)3 + H2SO4 = Al2(SO4)3 + H2O​

Answer 1

Răspuns:

H2 + CuO = Cu + H2O

S + O2 = SO2

2SO2 + O2 =2 SO3

H2O + SO3 = H2SO4

2Na +2 H2O =2 NaOH + H2

Ca(OH) 2 + CO2 = CaCO3 + H2O

Mg +2 HCl = MgCl2 + H2

MgO + 2HCl = MgCl2 + H2O

2KOH + H2SO4 = K2SO4 + 2H2O

2K + H2SO4 = K2SO4 + H2

2Al + 3H2SO4 = Al2(SO4)3 + 3H2

2Al + 6HCl = 2AlCl3 +3 H2

Al2O3 +6 HCl = 2AlCl3 + 3H2O

Cu(OH)2 +2 HCl = CuCl2 +2 H2O

Al(OH)3 + 3HCl = AlCl3 +3 H2O

2Al(OH)3 + 3H2SO4 = Al2(SO4)3 +6 H2O