1,nacl–>nước gia ven-> cl2_>hcl->agcl->ag
2,kmno4 ->cl2 ->nacl->cl2->fecl3->fe(oh)3->fe203-> fe(no3)3
3,hc->cl2-> fecl3->nacl->hcl->cucl2->agcl->ag
4,f2->caf2->hf->sif4
5,caco3->cacl2->nacl->naoh->naclo
6,kmno4_>cl2->hclo->hcl->mgcl2->agcl->cl2->br2->kbr> kcl->hcl
7,naoh->nacl->hcl->cl2->hcl->cucl2->cu(oh)2->cuo->cucl2->kcl_>cl2
Đáp án:
Bạn tham khảo lời giải ở dưới nhé!!!
Giải thích các bước giải:
1,
\(\begin{array}{l}
2NaCl + 2{H_2}O \to 2NaOH + {H_2} + C{l_2}\\
2NaOH + C{l_2} \to NaCl + NaClO + {H_2}O\\
NaClO + 2HCl \to NaCl + C{l_2} + {H_2}O\\
C{l_2} + {H_2} \to 2HCl\\
HCl + AgN{O_3} \to AgCl + HN{O_3}\\
2AgCl \to 2Ag + C{l_2}
\end{array}\)
\(\begin{array}{l}
2,\\
2KMn{O_4} + 16HCl \to 2KCl + 2MnC{l_2} + 5C{l_2} + 8{H_2}O\\
2Na + C{l_2} \to 2NaCl\\
2NaCl + 2{H_2}O \to 2NaOH + {H_2} + C{l_2}\\
2Fe + 3C{l_2} \to 2FeC{l_3}\\
FeC{l_3} + 3NaOH \to Fe{(OH)_3} + 3NaCl\\
2Fe{(OH)_3} \to F{e_2}{O_3} + 3{H_2}O\\
F{e_2}{O_3} + 6HN{O_3} \to 2Fe{(N{O_3})_3} + 3{H_2}O\\
3,\\
2HCl \to {H_2} + C{l_2}\\
2Fe + 3C{l_2} \to 2FeC{l_3}\\
FeC{l_3} + 3NaOH \to Fe{(OH)_3} + 3NaCl\\
2NaCl + {H_2}S{O_4} \to N{a_2}S{O_4} + 2HCl\\
CuO + 2HCl \to CuC{l_2} + {H_2}O\\
CuC{l_2} + 2AgN{O_3} \to Cu{(N{O_3})_2} + 2AgCl\\
2AgCl \to 2Ag + C{l_2}\\
4,\\
{F_2} + Ca \to Ca{F_2}\\
Ca{F_2} + {H_2}S{O_4} \to CaS{O_4} + 2HF\\
Si{O_2} + 4HF \to Si{F_4} + 2{H_2}O\\
5,\\
CaC{O_3} + 2HCl \to CaC{l_2} + C{O_2} + {H_2}O\\
CaC{l_2} + N{a_2}S{O_4} \to CaS{O_4} + 2NaCl\\
2NaCl + 2{H_2}O \to 2NaOH + {H_2} + C{l_2}\\
2NaOH + C{l_2} \to NaCl + NaClO + {H_2}O\\
6,\\
2KMn{O_4} + 16HCl \to 2KCl + 2MnC{l_2} + 5C{l_2} + 8{H_2}O\\
C{l_2} + {H_2}O \mathbin{\lower.3ex\hbox{$\buildrel\textstyle\rightarrow\over
{\smash{\leftarrow}\vphantom{_{\vbox to.5ex{\vss}}}}$}} HCl + HClO\\
HClO \to HCl + {O_2}\\
2HCl + Mg \to MgC{l_2} + {H_2}\\
MgC{l_2} + 2AgN{O_3} \to 2AgCl + Mg{(N{O_3})_2}\\
2AgCl \to 2Ag + C{l_2}\\
2KBr + C{l_2} \to 2KCl + B{r_2}\\
2K + B{r_2} \to 2KBr\\
2KBr + C{l_2} \to 2KCl + B{r_2}\\
2KCl + {H_2}S{O_4} \to {K_2}S{O_4} + 2HCl
\end{array}\)
7,
\(\begin{array}{l}
NaOH + HCl \to NaCl + {H_2}O\\
2NaCl + {H_2}S{O_4} \to N{a_2}S{O_4} + 2HCl\\
2HCl \to {H_2} + C{l_2}\\
{H_2} + C{l_2} \to 2HCl\\
CuO + 2HCl \to CuC{l_2} + {H_2}O\\
CuC{l_2} + 2NaOH \to Cu{(OH)_2} + 2NaCl\\
Cu{(OH)_2} \to CuO + {H_2}O\\
CuO + 2HCl \to CuC{l_2} + {H_2}O\\
CuC{l_2} + 2KOH \to Cu{(OH)_2} + 2KCl\\
2KCl \to 2K + C{l_2}
\end{array}\)