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The image shows a text with questions related to chemical reactions and processes in Russian. Here's a breakdown of the content:

1. Describes conditions for performing certain chemical reactions at steady temperature and pressure.

2. Involves performing reactions with introductions such as:

   • NaOH
   • HCl
   • Zn(NO₃)₂

3. Discusses reactions with copper:

   • Cu + 2NO₂
   • H₂O + Cu(H₂O)₄₂

4. Has content about salt solutions and precipitation reactions.

5. Reactions involving ions:

   • Ba²⁺ ions
   • Cl– ions
   • CO₃²⁻ ions

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