NaCl-HCl-CuCl2-Cu(OH)2-CuCl2-Cu(NO3)2-Cl2-Br2-I2

Question

NaCl->HCl->CuCl2->Cu(OH)2->CuCl2->Cu(NO3)2->Cl2->Br2->I2

khanhchau · Answer

(NaC{l_r} + {H_2}S{O_4} xrightarrow{{{t^o}}}NaHS{O_4} + HCl )    (CuO + 2HCl xrightarrow{{}}CuC{l_2} + {H_2}O )    (CuC{l_2} + 2NaOH xrightarrow{{}}Cu{(OH)_2} + 2NaCl )    (Cu{(OH)_2} + 2HCl xrightarrow{{}}CuC{l_2} + 2{H_2}O )    (CuC{l_2} + 2AgN{O_3} xrightarrow{{}}AgCl + Cu{(N{O_3})_2} )    (Cu{(N{O_3})_2} + 6KCl + 4{H_2}S{O_4} xrightarrow{{}}CuS{O_4} + 3{K_2}S{O_4} + 3C{l_2} + 2NO + 4{H_2}O )    (C{l_2} + 2NaBr xrightarrow{{}}2NaCl + B{r_2} )    (B{r_2} + 2NaI xrightarrow{{}}2NaBr + {I_2} )

ngochuong · Answer

Đ&aacute;p &aacute;n:       Giải th&iacute;ch c&aacute;c bước giải:    2  NaCl   +   H 2 SO 4    &rarr;   2  HCl   +   Na 2 SO 4      2HCl +Cu &rarr;Cucl2 +h2     CuCl 2  +  2 NaOH &rarr; Cu(OH) 2  +  2 NaCl     Cu(OH) 2  +  2 HCl &rarr; CuCl 2  +  2 H 2 O     CuCl2+2AgNO3->Cu(NO3)2+2AgCl     cl2 +2nabr&rarr;2nacl+br2     cl2 +2naI &rarr;2nacl+I2

NaCl->HCl->CuCl2->Cu(OH)2->CuCl2->Cu(NO3)2->Cl2->Br2->I2

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