Convert moles back into the requested unit (mass, volume, or concentration). Conclusion/Observation (Вывод):
Use the coefficients from your balanced equation to find the moles of the unknown substance.
If it's a lab report, describe what you saw (color change, gas evolution, precipitate formation).
In Russian education, (ГДЗ — Готовые Домашние Задания) refers to "Ready-to-Use Homework Solutions." A "good write-up" in the context of chemistry usually means a clear, step-by-step explanation of a chemical problem or lab report that shows you understand the process, rather than just copying an answer. Elements of a Quality Chemistry Write-Up
List all known values with their units (mass in grams, volume in liters, molarity in mol/L). Clearly state what you are trying to find (e.g., Step 1: Molar Mass: Calculate the molar masses ( ) of the substances involved using the periodic table. Step 2: Moles: Convert given units into moles ( ), as chemical equations work on a mole-to-mole basis.
Use GDZ sites like Gdz.ru or Reshak.ru to check your logic after you've tried the problem yourself.