Final answer:
Amides can make hydrogen bonds with water molecules and are soluble in water. Amines of low molar mass are also soluble in water but the solubility decreases as the carbon chain length increases.
Step-by-step explanation:
Amides can make hydrogen bonds with water molecules and are soluble in water. Amides containing up to five carbon atoms are soluble in water, while those with larger alkyl groups are slightly soluble or insoluble due to the hydrophobic nature of the alkyl groups. On the other hand, amines of low molar mass are quite soluble in water, but the solubility decreases as the carbon chain length increases.