Question

Al₂(SO₄)₃+KOH--- ?+?

Al(OH)₃+HCl---?+?

NAOH+HCl

Fe(OH)₃+HCl

Fe(OH)₃---?+?

Fe(OH)₂---?+?

Cu(OH)₂+HCl---?+?

 

Answer 1

(1) \(\left\{{}\begin{matrix}Al_2\left(SO_4\right)_3+6KOH\rightarrow2Al\left(OH\right)_3\downarrow+3K_2SO_4\\Al\left(OH\right)_3+KOH\rightarrow KAlO_2+2H_2O\end{matrix}\right.\)

(2) \(Al\left(OH\right)_3+3HCl\xrightarrow[]{}AlCl_3+H_2O\)

(3) \(NaOH+HCl\xrightarrow[]{}NaCl+H_2O\)

(4) \(Fe\left(OH\right)_3+3HCl\xrightarrow[]{}FeCl_3+3H_2O\)

(5) \(2Fe\left(OH\right)_3\xrightarrow[]{t^{\circ}}Fe_2O_3+3H_2O\uparrow\)

(6) \(Fe\left(OH\right)_2\xrightarrow[\text{chân không}]{t^{\circ}}FeO+H_2O\uparrow\)

(7) \(Cu\left(OH\right)_2+2HCl\xrightarrow[]{}CuCl_2+2H_2O\)