Test: 14.07.2026 1 смена - тесты с ответами из вступительных экзаменов по химии

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1. Press the “Practice” button — cards with all questions and options appear.
2. Clicking a card flips it: the correct answer and solution (if any) are shown.
3. Click again to flip back to the question. Works on mobile too.
4. Available to Premium users and site administration.