2) В какой реакции вещество X представляет собой Na2O?
а) Na+H2O→X+H₂
б) NaOH+ Na→ X + H2
в) NaH+ H2O → X + H2 -
г) NaOH+S→ Na2S+X+H2
д) NaOH + Si + H2O → X + H2​
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