Решите цепочки превращений:1)MgO-Mg-MgO 2)Na-Na2O-NaOH 3)P-PH3-P2O5 4)FeS-FeO-Fe. Created by arakelyankrist. himiya-ru

Решите цепочки превращений:1)MgO-Mg-MgO 2)Na-Na2O-NaOH 3)P-PH3-P2O5 4)FeS-FeO-Fe...

svetka1574 1)
MgO+C=Mg+CO

2Mg+O2=2MgO

2)
4Na+O2=2Na2O

Na2O+H2O=2NaOH

3)
2P+3H2=2PH3

2PH3+4O2=P2O5+3H2O

4)
2FeS+3O2=2FeO+2SO2

FeO+C=Fe+CO

shakha2017

Verified answer

1) 2MgO -> 2Mg + O2
2Mg + O2 -> 2MgO

2) 4Na + O2 -> 2Na2O
Na2O + H2O -> 2NaOH

3) 2P + 3H2 -> 2PH3
2 PH3 + 4O2 -> P2O5 + 3H2O

4) 2FeS + 3O2 ->2 FeO + 2SO2
2FeO ->2 Fe + O2

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