Câu 1 ) A / Mg(NO₃) \(\underrightarrow{\left(1\right)}\) Mg(OH)₂ \(\underrightarrow{\left(2\right)}\) MgCl_{2\(\underrightarrow{\left(3\right)}\) KCl} \(\underrightarrow{\left(4\right)}\) KNO₃

_{B/ \(Na\underrightarrow{\left(1\right)}Na_2O\underrightarrow{\left(2\right)}NaOH\underrightarrow{\left(3\right)}Na_2SO_4\underrightarrow{\left(4\right)}NaCl\underrightarrow{\left(5\right)}NaNO_3\underrightarrow{\left(6\right)}NaCl\underrightarrow{\left(7\right)}NaOH\)}

C/\(Mg\underrightarrow{\left(1\right)}MgO\underrightarrow{\left(2\right)}MgCl_2\underrightarrow{\left(3\right)}Mg\left(NO_3\right)_2\underrightarrow{\left(4\right)}Mg\left(OH\right)_2\underrightarrow{\left(5\right)}MgSO_4\underrightarrow{\left(6\right)}MgCO_3\)

D/\(CuSO_4\underrightarrow{\left(1\right)}Cu\left(OH\right)_2\underrightarrow{\left(2\right)}CuO\underrightarrow{\left(3\right)}CuCl_2\underrightarrow{\left(4\right)}Cu\left(OH\right)_2\underrightarrow{\left(5\right)}CuSO_4\)

E/\(CuCl_2\underrightarrow{\left(1\right)}Cu\left(OH\right)_2\underrightarrow{\left(2\right)}CuSO_4\underrightarrow{\left(3\right)}Cu\underrightarrow{\left(4\right)}CuO\)

F/ \(Cu\left(OH\right)_2\underrightarrow{\left(1\right)}CuO\underrightarrow{\left(2\right)}CuCl_2\underrightarrow{\left(3\right)}Cu\left(NO_3\right)_2\underrightarrow{\left(4\right)}NaNO_3\)

G/\(Fe_2O_3\underrightarrow{\left(1\right)}FeCl_3\underrightarrow{\left(2\right)}Fe\left(OH\right)_3\underrightarrow{\left(3\right)}Fe_2O_3\underrightarrow{\left(4\right)}Fe_2\left(SO_4\right)_3\)

H/ \(ZnCl_2\underrightarrow{\left(1\right)}Zn\left(OH\right)_2\underrightarrow{\left(2\right)}ZnCl_2\underrightarrow{\left(3\right)}NaCl\underrightarrow{\left(4\right)}NaNO_3\)

M/\(CuO\underrightarrow{\left(1\right)}CuCl_2\underrightarrow{\left(2\right)}Cu\left(OH\right)_2\underrightarrow{\left(3\right)}CuO\underrightarrow{\left(4\right)}CuSO_4\)

N/\(Fe\left(OH\right)_2\underrightarrow{\left(1\right)}FeO\underrightarrow{\left(2\right)}FeCl_2\underrightarrow{\left(3\right)}Fe\left(ỌH_2\right)\underrightarrow{\left(4\right)}FeSO_4\underrightarrow{\left(5\right)}FeCl_2\underrightarrow{\left(6\right)}Fe\left(NO_3\right)_2\)

Z/ \(Mg\left(OH\right)_2\underrightarrow{\left(1\right)}MgO\underrightarrow{\left(2\right)}MgSO_4\underrightarrow{\left(3\right)}MgCl_2\underrightarrow{\left(4\right)}Mg\left(OH\right)_2\underrightarrow{\left(5\right)}MgCl_2\underrightarrow{\left(6\right)}Mg\left(NO_3\right)_2\)

X/\(Al\left(OH\right)_3\underrightarrow{\left(1\right)}Al_2O_3\underrightarrow{\left(2\right)}AlCl_3\underrightarrow{\left(3\right)}Al\underrightarrow{\left(4\right)}Al_2\left(SO_4\right)_3\)

1viết PTHH của các phản ứng xảy ra (nếu có)

a) Zn + O₂\(\underrightarrow{t^o}\)

Al + O₂\(\underrightarrow{t^o}\)

Cu + O₂\(\underrightarrow{t^o}\)

b) Zn + Cl₂\(\underrightarrow{t^o}\)

Al + Cl₂\(\underrightarrow{t^o}\)

Cu + Cl₂\(\underrightarrow{t^o}\)

c) Zn + H₂SO₄\(\rightarrow\) loãng

Al + H₂ SO₄\(\rightarrow\) loãng

Cu + H₂SO₄\(\rightarrow\) loãng

d) Zn + FeSO₄\(\rightarrow\) DD

Al + FeSO₄\(\rightarrow\) DD

Cu + FeSO₄\(\rightarrow\) DD

Viết các phương trình biểu diễn dãy chuyển hóa sau

a)\(CaCO_3\underrightarrow{t^0}\left\{{}\begin{matrix}\rightarrow A\underrightarrow{+B}C\underrightarrow{+D}E\underrightarrow{+F}CaCO_3\\\rightarrow P\underrightarrow{+X}Q\underrightarrow{+Y}R\underrightarrow{+Z}CaCO_3\end{matrix}\right.\)

b)\(A\underrightarrow{t^0}\left[{}\begin{matrix}B\underrightarrow{+D}E\\\xrightarrow[G]{B}A\\G\underrightarrow{t^0}F\end{matrix}\right.\xrightarrow[F]{E}A\)

Trong đó A,B,D,E,G,F là các hợp chất vô cơ khác nhau

A là hợp chất của Ca