: Basic concepts, properties of oxygen and hydrogen, atomic structure, and chemical bonds.

: Use the GDZ primarily to verify your own understanding of complex topics like molar mass calculations or balancing redox reactions.

: If you can't find a "GDZ" specifically, search for the " Teacher's Manual " (Пособие для учителей) for this book, as it contains all the correct answers and marking schemes.

To navigate the GDZ effectively, you should know that the 2011 manual is structured by topics relevant to the Russian school curriculum:

: Radetsky has multiple editions (e.g., 1999, 2011, 2017). The 2011 edition was published by "Prosveshchenie" and has specific numbering that might differ from newer versions.