Giúp mik vs ạ sắp thi rồiiiiiiiiiiiii

`a)`

`Fe+2HCl->FeCl_2+H_2`

`2Al+6HCl->2AlCl_3+3H_2`

`Mg+2HCl->MgCl_2+H_2`

`b)`

`n_{Fe}={11,2}/{56}=0,2(mol);n_{Al}={5,4}/{27}=0,2(mol)`

`n_{Mg}={12}/{24}=0,5(mol)`

Theo pt:

`n_{H_2}=n_{Fe}+1,5n_{Al}+n_{Mg}=1(mol)`

`V_{H_2}=1.22,4=22,4(L)`

`c)`

Theo pt:

`n_{FeCl_2}=n_{Fe}=0,2(mol)`

`n_{AlCl_3}=n_{Al}=0,2(mol)`

`n_{MgCl_2}=n_{Mg}=0,5(mol)`

`m_{m u o i}=0,2.127+0,2.133,5+0,5.95=99,6(g)`

`d)`

`HCl+NaOH->NaCl+H_2O`

Theo pt:

`n_{NaOH}=n_{HCl}=2n_{H_2}=2(mol)`

`V_{dd\ NaOH}=2/2=1(L)=1000(mL)`