Odpowiedź:
a)
1. 2Na+ 2H2O--> 2NaOH +H2
2. 2NaH +O2 --> 2NaOH
3. Na2O +H2O-> 2NaOH
b)
1. Ca + 2H2O ---> Ca(OH)2 +H2
2. CaH2 + O2--> Ca(OH)2
3. CaO + H2O--> Ca(OH)2
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Odpowiedź:
a)
1. 2Na+ 2H2O--> 2NaOH +H2
2. 2NaH +O2 --> 2NaOH
3. Na2O +H2O-> 2NaOH
b)
1. Ca + 2H2O ---> Ca(OH)2 +H2
2. CaH2 + O2--> Ca(OH)2
3. CaO + H2O--> Ca(OH)2