Question

CuCl2->Cu(OH) 2->CuO->Cu

Answer 1

Спрашивай если что-то непонятно

Answer 2

The chemical reactions you've listed involve the transformation of copper(II) chloride (CuCl2) into different copper compounds. Let's break down each step:

1. CuCl2 -> Cu(OH)2: In this reaction, copper(II) chloride (CuCl2) reacts with a base (typically sodium hydroxide, NaOH) to form copper(II) hydroxide (Cu(OH)2) and sodium chloride (NaCl). The balanced chemical equation for this reaction is as follows:

CuCl2 + 2 NaOH -> Cu(OH)2 + 2 NaCl

2. Cu(OH)2 -> CuO: Copper(II) hydroxide (Cu(OH)2) can undergo thermal decomposition (heating) to produce copper(II) oxide (CuO) and water (H2O):

Cu(OH)2 -> CuO + H2O

3. CuO -> Cu: Finally, copper(II) oxide (CuO) can be further reduced to elemental copper (Cu) by heating it with a reducing agent like hydrogen gas (H2):

CuO + H2 -> Cu + H2O

So, the overall reaction sequence would be:

CuCl2 + 2 NaOH -> Cu(OH)2 + 2 NaCl Cu(OH)2 -> CuO + H2O CuO + H2 -> Cu + H2O

As a result, copper(II) chloride (CuCl2) is ultimately converted into elemental copper (Cu) through these chemical transformations.