Write the equation of the qualitative reaction for propanal. Indicate signs of a reaction.

A qualitative reaction to propanal will be the reaction of aldehydes with silver oxide in an ammonia solution (in the test tube there will be a complex compound of ammonium and silver, which for simplicity we write as just silver oxide). If the experiment is carried out in a clean container, silver can be obtained in the form of a thin shiny film on the walls of the test tube. This reaction is also called the “silver mirror” reaction.