Question

HCL-CL2-CUCL2-CU(OH)2-CUO-CU

Answer 1

2HCl =электролиз=> H2 + Cl2

Cu + Cl2 = CuCl2

CuCl2 + 2NaOH = Cu(OH)2 + 2NaCl

Cu(OH)2 =t=> CuO + H2O

CuO + H2 = Cu + H2O

Answer 2

The sequence you provided represents a series of chemical reactions involving compounds containing chlorine (Cl) and copper (Cu) elements. Here's a breakdown of the reactions:

1. HCl (hydrochloric acid) + Cl2 (chlorine gas) → HCl + Cl2 This reaction shows the presence of hydrochloric acid and chlorine gas, but it doesn't result in any chemical change.

2. HCl + CuCl2 (copper(II) chloride) → CuCl2 + H2 (hydrogen gas) In this reaction, hydrochloric acid reacts with copper(II) chloride, forming copper(II) chloride and releasing hydrogen gas.

3. CuCl2 + 2H2O (water) → Cu(OH)2 (copper(II) hydroxide) + 2HCl Copper(II) chloride reacts with water to produce copper(II) hydroxide and hydrochloric acid.

4. Cu(OH)2 → CuO (copper(II) oxide) + H2O Copper(II) hydroxide undergoes a decomposition reaction, yielding copper(II) oxide and water.

5. CuO + H2 → Cu + H2O Copper(II) oxide reacts with hydrogen gas to form copper metal and water.

Overall, the reactions represent the transformation of hydrochloric acid and copper(II) chloride to eventually yield copper metal (Cu).