`1)\ a,`

CTHH của các bazơ là`:`

`FeO->Fe(OH)_2`

`Zn->Zn(OH)_2`

`PbO->Pb(OH)_2`

`HgO->Hg(OH)_2`

`Al->Al(OH)_3`

`Ca->Ca(OH)_2`

`Na->NaOH.`

`b,`

Bazơ tan `:Ca(OH)_2,NaOH.`

Bazơ không tan `:Fe(OH)_2, Zn(OH)_2,Pb(OH)_2,Hg(OH)_2,Al(OH)_3.`

`c,`

Canxi hidroxit `:Ca(OH)_2`

Natri hidroxit `:NaOH.`

Sắt `(II)` hidroxit `:Fe(OH)_2`

Kẽm hidroxit `: Zn(OH)_2`

Chì `(II)` hidroxit `:Pb(OH)_2`

Thủy ngân `(II)` hidroxit `:Hg(OH)_2`

Nhôm hidroxit `:,Al(OH)_3.`

`2)`

`(100ml=0,1l)`

`a,\ 4Al+6H_2SO_4->2Al_2(SO_4)_3+3H_2`

`b,\ n_{Al}=m/M={5,4}/27=0,2(mol)`

`Theo\ pt:n_{H_2}=3/4n_{Al}=3/4 xx 0,2 =0,15(mol)`

`-> V_{H_2}=n xx 24,79=0,15 xx 24,79=3,7185(l)`

`c,`

`Theo\ pt:n_{Al_2(SO_4)_3}=2/4n_{Al}=2/4 xx 0,2 =0,1(mol)`

`-> m_{Al_2(SO_4)_3}=n xx M=0,1 xx 342=34,2(g)`

`d,`

`Theo\ pt:n_{HCl}=6/4n_{Al}=6/4 xx 0,2 =0,3(mol)`

`-> C_{M\ HCl}=n/V={0,3}/{0,1}=3M`

a)`Fe -> Fe(OH)_2`

`Zn -> Zn(OH)_2`

`Pb -> Pb(OH)_2`

`Hg -> Hg(OH)_2`

`Al -> Al(OH)_3`

`Ca -> Ca(OH)_2`

`Na -> NaOH`

b)`Ca(OH)_2, NaOH` là base tan, các base còn lại là base không tan.

c)

`Fe(OH)_2`: iron (II) Hydroxide

`Zn(OH)_2`: Zinc Hydroxide

`Pb(OH)_2`: Chì (II) Hydroxide

`Hg(OH)_2`: Mercury (II) Hydroxide

`Al(OH)_3`: Aluminium Hydroxide

`Ca(OH)_2`: Calcium hydroxide

`NaOH`: Sodium Hydroxide

2.

a)`2Al + 3H_2SO_4 -> Al_2(SO_4)_3 + 3H_2`

`n_{Al} = {5,4}/{27} = 0,2` mol

b)`n_{H_2} = 3/2n_{Al} = 3/2 . 0,2 = 0,3` mol

`V_{H_2} = 0,3 . 24,79 = 7,437l`

c)`n_{Al_2(SO_4)_3} = n_{Al} = 0,2` mol

`m_{Al_2(SO_4)_3} = 0,2 .342 = 68,4g`

d)`n_{H_2SO_4} = 3/2n_{Al} = 3/2 . 0,2 = 0,3` mol

`100ml = 0,1l`

`C_{M text\[ H_2SO_4 ]} = {0,3}/{0,1} = 3M`