Compounds that produce hydroxide ions by chemically reacting with water, rather than by dissociating, are:

1. Ionic hydroxides simply dissolve and release the hydroxide they already contain. 2. Unlike ionic hydroxides, some compounds produce hydroxide ions when dissolved by chemically reacting with water molecules. 3. In all cases, these compounds react only partially and so are classified as weak bases. 4. Reacting partially is exactly what the word weak records here. 5. A strong base would be fully dissociated instead. _Source: OpenStax Chemistry 2e (CC BY 4.0), Ch 4 'Stoichiometry of Chemical Reactions', sections 4.1-4.5_