Aldehyde to Carboxylic Acid
Music (Hotel Yorba) by Jack White of the White Stripes
Lyrics by Megan Arman

you've got an aldehyde
you wanna get a carboxylic acid
you use the same thing as the Tollen's test, you know we used it in the lab

you know it's also
called the reducing sugar test
any sugar that's in equilibrium with its open chain
will reduce Ag2O I guess

Ag2O , NaOH
react that with H3O+ and you'll get
carboxylic acid guaranteed!