Question

a) Cu-->CuCl2-->Cu(OH)2-->CuO-->CuSO4-->CuCl2-->AgCl

b) Al-->Al2(SO4)3-->Al(OH)3-->Al2O3-->Al-->AlCl3-->Al(OH)3

Answer 1

a, \(Cu+Cl_2\underrightarrow{t^o}CuCl_2\)

\(CuCl_2+2NaOH\rightarrow2NaCl+Cu\left(OH\right)_{2\downarrow}\)

\(Cu\left(OH\right)_2\underrightarrow{t^o}CuO+H_2O\)

\(CuO+H_2SO_4\rightarrow CuSO_4+H_2O\)

\(CuSO_4+BaCl_2\rightarrow CuCl_2+BaSO_{4\downarrow}\)

\(CuCl_2+2AgNO_3\rightarrow Cu\left(NO_3\right)_2+2AgCl_{\downarrow}\)

b, \(2Al+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2\)

\(Al_2\left(SO_4\right)_3+6NaOH\rightarrow3Na_2SO_4+2Al\left(OH\right)_{3\downarrow}\)

\(2Al\left(OH\right)_3\underrightarrow{t^o}Al_2O_3+3H_2O\)

\(2Al_2O_3\underrightarrow{t^o}4Al+3O_2\)

\(2Al+6HCl\rightarrow2AlCl_3+3H_2\)

\(AlCl_3+3NaOH\rightarrow Al\left(OH\right)_{3\downarrow}+3NaCl\)