Always try to solve the equations and reaction chains on your own using your textbook and class notes.
In the Russian curriculum, several authors are standard. The most common "GDZ" solutions correspond to these specific workbooks: gdz po rabochei tetradi khimii 8 klass
Most students access these guides through reputable educational portals that offer scanned or digitized versions of the completed workbooks: Always try to solve the equations and reaction
Use the guide to check if you have correctly balanced chemical equations or identified the right products in a reaction. If your answer differs, look at the step-by-step
If your answer differs, look at the step-by-step solution in the GDZ to identify where your logic failed (e.g., incorrect valence or forgotten coefficients).
For tasks involving mass fraction or molar volume, the guide can show you the standard formatting required by teachers. Where to Find Reliable Solutions