Question

từ accs chất cho sẵn: NaCl, H2O, CuSO4
hãy viết PT PỨ điều chế Cu(OH)2, CuO

Answer 1

\(2NaCl+2H_2O-^{đpcmn}\rightarrow2NaOH+H_2+Cl_2\)

\(2NaOH+CuSO_4\rightarrow Na_2SO_4+Cu\left(OH\right)_2\)

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

Answer 2

a/

2NaCl\(\xrightarrow[]{đpnc}\) 2Na+ Cl₂

2Na+ 2H₂O\(\rightarrow\) 2NaOH+ H₂\(\uparrow\)

2NaOH+ CuSO₄\(\rightarrow\)Cu(OH)₂\(\downarrow\)+ Na₂SO₄

b/

Cu(OH)₂\(\xrightarrow[]{to}\) CuO+ H₂O