Justify that the reaction : 2Na (s)+H_(2)(g)rarr2NaH(s) is a redo reac

1.	Justify that the reaction : 2Na (s)+H_(2)(g)rarr2NaH(s) is a redo reaction
Answer» SOLUTION :Since NaH is an ionnic compound itmay be represented a `Na^(+)H^(-)`(s) thus `2Na(s)+H_(2)(g)rarr2Na^(+)H^(-)(s)` this reactoincan be SPLIT up into the FOLLOWNG two half reaction `Na(s)rarrNa^(+)+E^(-)]xx2` `H_(2)(g)+2e^(-)rarr2H^(-)` overall redox reaction`2Na(s)+H_(2)(g)rarr2Na^(+)H^(-)(s)` In the first half rection Na is oxiised to `Na^(+)` ion while in the second half reaction `H_(2)` is reduced to `H^(-)` ions therefore the overall reaction is a redox change

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