Question

Cu--CuO--Cu(NO3)2--CuO--CuCl2--Cu(OH)2

Answer 1

2Cu+O2 = 2CuO
CuO+2HNO3 = Cu(NO3)2+H2O
2Cu(NO3)2 = (распад при t) 2CuO+4NO2+O2
CuO+2HCl = CuCl2+H2O
CuCl2+2NaOh = Cu(OH)2+2NaCl

удачи

Answer 2

Reaction Steps:

The given reaction sequence is as follows: Cu -> CuO -> Cu(NO3)2 -> CuO -> CuCl2 -> Cu(OH)2.

Let's break down each step of the reaction:

1. Cu -> CuO: - Copper (Cu) reacts with oxygen (O) to form copper(II) oxide (CuO).

2. CuO -> Cu(NO3)2: - Copper(II) oxide (CuO) reacts with nitric acid (HNO3) to form copper(II) nitrate (Cu(NO3)2) [[9]](https://core.ac.uk/download/pdf/162320110.pdf).

3. Cu(NO3)2 -> CuO: - Copper(II) nitrate (Cu(NO3)2) decomposes to form copper(II) oxide (CuO) [[5]](https://elar.urfu.ru/bitstream/10995/40625/1/978-5-7996-1780-6_2016.pdf).

4. CuO -> CuCl2: - Copper(II) oxide (CuO) reacts with hydrochloric acid (HCl) to form copper(II) chloride (CuCl2).

5. CuCl2 -> Cu(OH)2: - Copper(II) chloride (CuCl2) reacts with sodium hydroxide (NaOH) to form copper(II) hydroxide (Cu(OH)2).

Summary:

The given reaction sequence involves the transformation of copper (Cu) through various compounds, including copper(II) oxide (CuO), copper(II) nitrate (Cu(NO3)2), copper(II) chloride (CuCl2), and copper(II) hydroxide (Cu(OH)2).

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