Осуществите превращения. Na2O → NaOH → Na2S → Na2SO4 1) Na2O + ... → NaOH 2) NaOH + ......

Question

Осуществите превращения.
Na2O → NaOH → Na2S → Na2SO4

1) Na2O + ... → NaOH
2) NaOH + ... → Na2S
3) Na2S + ... → Na2SO4

Answer 1

Na2O+H2O-->2NaOH

2NaOH+H2S-->Na2S+2H2O

Na2S+H2SO4-->Na2SO4+H2S