1. The waiter brings me this dish.
---->This dish is brought to me by the waiter.
2. Our friends send these postcards to us.
---->These postcards are sent to us by our friends.
3.Their grandmother told them this story when they visited her last week.
----->This story was told them by their...
PTHH: $2Al+6HCl\rightarrow 2AlCl_{3}+3H_{2}\\n_{Al}=\frac{m}{M}=\frac{10,8}{27}=0,4(mol)\\n_{HCl}=\frac{V}{22,4}=\frac{13,44}{22,4}=0,6(mol)\\TL: \frac{0,4}{2}>\frac{0,6}{6} $
Suy ra Al dư, HCl tham gia phản ứng hết
$Theo pt...