Giúp vs

Em tham khảo nha:

\(\begin{array}{l}
1)\\
a)\,Zn + 2HCl \to ZnC{l_2} + {H_2}\\
b)\,2Na + 2{H_2}O \to 2NaOH + {H_2}\\
c)\,CaO + {H_2}O \to Ca{(OH)_2}\\
d)\,S{O_3} + {H_2}O \to {H_2}S{O_4}\\
e)\,F{e_2}{O_3} + 3{H_2} \xrightarrow{t^0} 2Fe + 3{H_2}O\\
2)\\
a)\,CuO + {H_2} \xrightarrow{t^0} Cu + {H_2}O\\
b)\\
{n_{CuO}} = \dfrac{{16}}{{80}} = 0,2\,mol\\
{n_{{H_2}}} = {n_{CuO}} = 0,2\,mol\\
{V_{{H_2}}} = 0,2 \times 22,4 = 4,48l\\
c)\\
{n_{Cu}} = {n_{{H_2}}} = 0,2\,mol\\
{m_{Cu}} = 0,2 \times 64 = 12,8g
\end{array}\)