Chọn các chất từ A1 đến A4 v...

- Hướng dẫn giải

Phương pháp giải:

Ghi nhớ tính chất hóa học K và cách điều chế ra KCl

Giải chi tiết:

\(\begin{gathered}
(1)\,2KCl\xrightarrow{{dpnc}}2K + C{l_2} \uparrow \hfill \\
\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{A_1}\,\,\,\,\,\,\,{B_1} \hfill \\
(2)\,2K + C{l_2}\xrightarrow{{}}\,2KCl \hfill \\
\,\,\,\,\,\,\,{A_1}\,\,\,\,\,\,{B_1} \hfill \\
(3)\,2K\, + 2{H_2}O\xrightarrow{{}}\,2KOH\, + \,{H_2} \uparrow \hfill \\
\,\,\,\,\,\,{A_1}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{A_2} \hfill \\
(4)\,C{l_2} + Cu\xrightarrow{{{t^0}}}\,CuC{l_2} \hfill \\
\,\,\,\,\,\,\,\,{B_1}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{B_2} \hfill \\
(5)\,\,2KOH\, + CuC{l_2}\xrightarrow{{}}\,\,2KCl\, + \,Cu{(OH)_2} \downarrow \hfill \\
\,\,\,\,\,\,\,\,\,{A_2}\,\,\,\,\,\,\,\,\,\,\,\,{B_2} \hfill \\
(6)\,\,2KOH\, + C{O_2}\xrightarrow{{}}\,{K_2}C{O_3} + {H_2}O \hfill \\
\,\,\,\,\,\,\,\,\,\,\,\,\,{A_2}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{A_3} \hfill \\
(7)\,CuC{l_2} + \,Ba{(OH)_2}\xrightarrow{{}}\,Cu{(OH)_2} \downarrow + BaC{l_2} \hfill \\
\,\,\,\,\,\,\,\,\,\,\,{B_2}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{B_3} \hfill \\
(8)\,{K_2}C{O_3}\, + BaS\,\tan \xrightarrow{{}}\,BaC{O_3} \downarrow + \,{K_2}S \hfill \\
\,\,\,\,\,\,\,\,\,\,{A_{3\,}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{A_4} \hfill \\
(9)\,BaC{l_2}\, + \,{H_2}S{O_4}\xrightarrow{{}}BaS{O_4} \downarrow + 2HCl \hfill \\
\,\,\,\,\,\,\,\,{B_3}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{B_4} \hfill \\
(10)\,{K_2}S + 2HCl\xrightarrow{{}}\,{H_2}S \uparrow \, + 2KCl \hfill \\
\,\,\,\,\,\,\,\,\,\,{A_4}\,\,\,\,\,\,\,\,\,{B_4}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,A \hfill \\
(11)\,{K_2}S + CdC{l_2}\xrightarrow{{}}2CdS \downarrow \,vang\, + 2KCl \hfill \\
\,\,\,\,\,\,\,\,\,\,{A_4}\,\,\,ca\dim iclorua \hfill \\
(12)2HCl + {K_2}Si{O_3}\xrightarrow{{}}\,2KCl\, + {H_2}Si{O_3} \downarrow \hfill \\
\,\,\,\,\,\,\,\,\,\,{B_{4\,}}\,\,\,\,\,\,\,\,\,kalisilicat\,\,\,\,\,\,\,\,\,\,\,\,\,A\,\,\,\,\,\,\,\,\,\,\,axit\,silicic \hfill \\
\end{gathered} \)