Question

Zn --→ ZnCl2 - Zn(OH)2 Zn(OH)2 → ZnO

Answer 1

Ответ:

Объяснение:

Zn + 2HCl = ZnCl2 + H2↑

ZnCl2 + 2NaOH = Zn(OH)2↓ + 2NaCl

Zn(OH)2 -> ZnO + H2O

Answer 2

The reactions you've described involve the transformation of zinc (Zn) into zinc chloride (ZnCl2), zinc hydroxide (Zn(OH)2), and ultimately into zinc oxide (ZnO). Let's break down these reactions step by step:

1. Zn --→ ZnCl2: This reaction represents the corrosion of zinc metal in the presence of an acid, typically hydrochloric acid (HCl). The zinc metal reacts with the acid to produce zinc chloride.

2. Zn(OH)2 → ZnO: This transformation represents the conversion of zinc hydroxide (Zn(OH)2) into zinc oxide (ZnO). This can occur through the dehydration of zinc hydroxide. The reaction might involve the removal of water (H2O) to form zinc oxide.

Here's the overall reaction in two steps:

1. Zn + 2HCl --> ZnCl2 + H2 (Zinc reacts with hydrochloric acid to produce zinc chloride and hydrogen gas.)

2. 2Zn(OH)2 --(Dehydration)--> 2ZnO + 2H2O (Zinc hydroxide dehydrates to form zinc oxide and water.)

These reactions demonstrate the chemical changes that occur when zinc reacts with an acid to form zinc chloride, and when zinc hydroxide is dehydrated to produce zinc oxide.