Step 1: Identify the structure of the molecule CH3-CH2-COOH. It has a chain of carbon atoms.
Step 2: Count the number of carbon atoms in the longest chain. There are three carbon atoms.
Step 3: Determine the functional group. The -COOH group indicates that it is a carboxylic acid.
Step 4: Combine the number of carbon atoms with the functional group to name the compound. Three carbon atoms with a carboxylic acid means the name is propanoic acid.
