Question

Identify the substances that are oxidised and the substances that are reduced

to the folllowing reactions.

1. Na + O2 → Na2O

(s) (g) (s)

CuO + H2

→ Cu + H2 O(l)​

Answer 1

Explanation:

HERE

NA(s)+02(g)→ NA2O(aq) 1 ST EQUATION

CUO+H2→ Cu+H2O

↓

(CUO reduced here to Cu )

and (H2 IS OXIDISED TO H2O)