November 2021 1 6 Report
2. Какая реакция относится к окислительно-восстановительным:
А) 2K + 2H2O → 2KOH + H2;
Б) BaO + 2HCl → BaCl2 + H2O
В) Ca (NO3) 2 + H2SO4 → CaSO4 + 2HNO3.
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