I forgot about charge balancing the equations - as written they are not. Here we go again:
CH3CH2OH + 1/2 O2 ––�?gt; CH3CHO + H2O
CH3CHO + 1/2 O2 ––�?gt; CH3COOH
When these are added together we have
CH3CH2OH + O2 ––�?gt; CH3COOH + H2O
That's more like it!
Steve