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October 2021
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Tizifona
Verified answer
1) 2H2 + O2 = 2H2O
2) H2 + 2Na = 2NaH
3) CuO + H2 (восстановитель) = Cu + H2O
4) Ca + H2 = CaH2
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Answers & Comments
Verified answer
1) 2H2 + O2 = 2H2O2) H2 + 2Na = 2NaH
3) CuO + H2 (восстановитель) = Cu + H2O
4) Ca + H2 = CaH2