2Al + 6HCl = 2AlCl3 +3H2
Al(0) -3e = Al(+3) 2 ок-ие
в-ль
2H(+) +2e = H2(0) 3 в-ие
ок-ль
AlCl3 + 3NaOH = Al(OH)3 + 3NaCl
Al(+3) + 3Cl(-)+ 3Na(+) + 3OH(-) = Al(OH)3 + 3Na(+) + 3Cl(-)
Al(+3) + 3OH(-)= Al(OH)3
2Al(OH)3 = Al2O3 + 3H2O
Al2O3 + 2NaOH = 2NaAlO2 + H2O
2Al + 6HCl = 2AlCl3 +3H2
Al(0) -3e = Al(+3) 2 ок-ие
в-ль
2H(+) +2e = H2(0) 3 в-ие
ок-ль
AlCl3 + 3NaOH = Al(OH)3 + 3NaCl
Al(+3) + 3Cl(-)+ 3Na(+) + 3OH(-) = Al(OH)3 + 3Na(+) + 3Cl(-)
Al(+3) + 3OH(-)= Al(OH)3
2Al(OH)3 = Al2O3 + 3H2O
Al2O3 + 2NaOH = 2NaAlO2 + H2O