Предмет: Химия, автор: NadezhF

осуществите превращение Al> Al2O3 >Al(NO3)3> Al(OH)3 >Al2O3> Na Al(OH)4

Ответы

Автор ответа: Аndreу

1)4Al+3O2=2Al2O3

Al(0)-3e=Al(+3) |4

O2(0)+4e=2O(-2) |3

2)Al2O3+6HCL=2AlCl3+3H20

3)AlCl3+3HNO3=Al(NO3)3+3HCl

Al(+3)+3Cl(-1)+3H(+)+3NO3(-)=Al(+3)+3NO3+3H(+)+3CL(-)

4)Al(NO3)3+3NaOH=Al(OH)3(в осадок)+3NaNO3

5)Al(OH)3+NaOH(р-р)=Na[Al(OH)4]

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