Al-al2o3-alcl3-al(oh)3-al(no3)3-al-al2o3=al2o : - вопрос №2333332322010867 от rozaliazhuravl 29.03.2020 22:59

Question

Химия: Al-al2o3-alcl3-al(oh)3-al(no3)3-al-al2o3=al2o : с

rozaliazhuravl · Answer

2Al+3O₂  =2Al₂O₃   Al₂O₃  +6HCl =-2AlCl₃  + 3H₂O
AlCl₃ + 3NaOH = Al(OH)₃  +3NaCl
Al(OH)₃  + 3HNO₃  =Al(NO₃)₃  + 3H₂O
Al(NO₃)₃ + Mg =Al + Mg(NO₃)₂
4Al + 3O₂ = 2Al₂O₃
Al₂O₃ + 2Si = 2SiO₂ + Al₂O