Question

осуществите следующие превращения Zn->ZnCl2->Z(OH)2->ZnO->ZnSO4

Answer 1

Zn+2HCl=ZnCl2+H2

ZnCl2+2H2O=Zn(OH)2+2HCl

Zn(OH)2=ZnO+H2O

ZnO+H2SO4=ZnSO4+H2O

Answer 2

Conversion: Zn -> ZnCl2 -> Z(OH)2 -> ZnO -> ZnSO4

To perform the given series of transformations from Zn to ZnSO4, we need to follow the reactions step by step. Here's how each transformation can be achieved:

1. Zn -> ZnCl2: - Zn reacts with hydrochloric acid (HCl) to form zinc chloride (ZnCl2) and hydrogen gas (H2). - The balanced equation for this reaction is: Zn + 2HCl -> ZnCl2 + H2.

2. ZnCl2 -> Z(OH)2: - Zinc chloride (ZnCl2) reacts with sodium hydroxide (NaOH) to form zinc hydroxide (Zn(OH)2) and sodium chloride (NaCl) [[5]](https://library.pguas.ru/xmlui/bitstream/handle/123456789/312/%D0%9F%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0%20%D0%BA%D1%83%D1%80%D1%81%D0%B0_%D0%A5%D0%B8%D0%BC%D0%B8%D1%8F_%20_%D0%B7%D0%B0%D0%BE%D1%87%D0%BD%D0%B8%D0%BA%D0%B8%20%D0%B8%20%D1%8D%D0%BA%D1%81%D1%82%D0%B5%D1%80%D0%BD%D0%B0%D1%82_.pdf?sequence=1&isAllowed=y). - The balanced equation for this reaction is: ZnCl2 + 2NaOH -> Zn(OH)2 + 2NaCl.

3. Z(OH)2 -> ZnO: - Zinc hydroxide (Zn(OH)2) can be heated to decompose into zinc oxide (ZnO) and water (H2O). - The balanced equation for this reaction is: Zn(OH)2 -> ZnO + H2O.

4. ZnO -> ZnSO4: - Zinc oxide (ZnO) reacts with sulfuric acid (H2SO4) to form zinc sulfate (ZnSO4) and water (H2O) [[1]](https://elar.urfu.ru/bitstream/10995/34779/1/978-5-321-02439-3.pdf). - The balanced equation for this reaction is: ZnO + H2SO4 -> ZnSO4 + H2O.

Therefore, the complete series of transformations from Zn to ZnSO4 can be summarized as follows: Zn -> ZnCl2 -> Z(OH)2 -> ZnO -> ZnSO4.

Please note that the reactions mentioned above are simplified representations. In reality, the reactions may involve specific conditions such as temperature, pressure, and catalysts to proceed efficiently.

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