Cu + Cl₂→ CuCl₂

CuCl₂ + 2NaOH → Cu(OH)₂ +2 NaCl

Cu(OH)₂ \(\underrightarrow{t^°}\) CuO + H₂O 

CuO +H₂SO₄ →CuSO₄ +H₂O

CuSO₄ +BaCl₂ → BaSO₄ + CuCl₂

a) 

(1) \(2Al+3FeCl_2\rightarrow2AlCl_3+3Fe\)

(2) \(2Fe+3Cl_2\underrightarrow{t^o}2FeCl_3\)

(3) \(FeCl_3+3NaOH\rightarrow Fe\left(OH\right)_3\downarrow+3NaCl\)

(4) \(2Fe\left(OH\right)_3\underrightarrow{t^o}Fe_2O_3+3H_2O\)

b) 

(1) \(2Cu+O_2\underrightarrow{t^o}2CuO\)

(2) \(CuO+2HCl\rightarrow CuCl_2+H_2O\)

(3) \(CuCl_2+2AgNO_3\rightarrow Cu\left(NO_3\right)_2+2AgCl\downarrow\)

(4) \(Cu\left(NO_3\right)_2+2NaOH\rightarrow Cu\left(OH\right)_2\downarrow+2NaNO_3\)

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

(6) \(CuO+H_2\underrightarrow{t^o}Cu+H_2O\)

Cảm ơn cậu nhìu<3

\(Cu+\dfrac{1}{2}O_2\underrightarrow{^{^{t^0}}}CuO\)

\(CuO+2HCl\rightarrow CuCl_2+H_2O\)

\(CuO+2HNO_3\rightarrow Cu\left(NO_3\right)_2+H_2O\)

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

\(CuO+H_2SO_3\rightarrow CuSO_3+H_2O\)

Chất cuối bị lỗi, lần sau đưa cái ảnh là được rồi bạn ! để đề như thế này dể nhầm lắm.

Dạ vầng ạ , em cảm ơn ạ

\(2Cu+O_2\underrightarrow{t^o}2CuO\)

\(CuO+2HCl\rightarrow CuCl_2+H_2O\)

\(CuCl_2+2NaOH\rightarrow2NaCl+Cu\left(OH\right)_2\)

\(Cu\left(OH\right)_2+H_2SO_4\rightarrow CuSO_4+2H_2O\)

Thanks!

CuCl₂ + Ba(OH)₂ \(\rightarrow\) Cu(OH)₂ + BaCl₂

Cu(OH)₂ \(\underrightarrow{t^0}\) CuO + H₂O

CuO + H₂SO₄ \(\rightarrow\) CuSO₄ + H₂O

CuSO₄ + Ba(NO₃)₂ \(\rightarrow\)  Cu(NO₃)₂ + BaSO₄

Ui em cảm ơn chị nhiều lắm 

PTHH:

Cu + H₂SO₄ → H₂ + CuSO₄

CuSO₄ + BaCl₂ → BaSO₄ + CuCl₂

CuCl₂ + Ba(OH)₂ → BaCl₂ + Cu(OH)₂

Cu(OH)₂ \(\underrightarrow{t^0}\) H₂O + CuO

2CuO \(\underrightarrow{t^0}\) 2Cu + O₂

Cu + H2SO4(ĐẶC NÓNG) -\(t^O\)> CuSO4 + 2H2O + SO2

CuSO4 + BACL2 -> CuCL2 + BASO4

CuCL2 + Pb(OH)2 -> Cu(OH)2 + PbCL2

Cu(OH)2 -\(t^O\)> CuO + H2O

CuO + H2 -\(t^O\)> Cu + H2O

\(2Cu+O_2\underrightarrow{^{^{t^0}}}2CuO\)

\(CuO+2HCl\rightarrow CuCl_2+H_2O\)

\(CuCl_2+2NaOH\rightarrow Cu\left(OH\right)_2+2NaCl\)

\(CuCl_2+2AgNO_3\rightarrow Cu\left(NO_3\right)_2+2AgCl\)

\(a,2Al_2O_3\rightarrow\left(đpnc,criolit\right)4Al+3O_2\\ 2Al+6HCl\rightarrow2AlCl_3+3H_2\\ AlCl_3+3NaOH\rightarrow Al\left(OH\right)_3+3NaCl\\ 2Al\left(OH\right)_3\rightarrow\left(t^o\right)Al_2O_3+3H_2O\\ Al_2O_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\)

\(b,2Cu+O_2\rightarrow\left(t^o\right)2CuO\\ CuO+2HCl\rightarrow CuCl_2+H_2O\\ CuCl_2+2KOH\rightarrow Cu\left(OH\right)_2+2KCl\\ Cu\left(OH\right)_2\rightarrow\left(t^o\right)CuO+H_2O\)