Hydrolysis is one chemical process that accomplishes chemical digestion. There are other chemical and mechanical digestive processes.
Hydrolysis is involved in maltose to glucose digestion. Maltose, a starch, gets hydrolyzed into a couple remains of glucose in this carbohydrate digestion.
In your mouth, amalyze chemically digests new food through your spit. This is a form of hydrolysis in digestion.
hydrolysis
Hydrolysis reaction
Hydrolysis or digestion
hydrolysis reactions
D. hydrolysis of proteins
Degradation and some oxidation to smaller molecules
Amylase is an enzyme that catalyses the hydrolysis of starch into sugars.
Amino acids must go through photosynthesis
chemical digestion
There are two possible answers to your question. The process in which food is broken down into smaller, soluble substances is digestion. However I think you might be after the type of chemical reaction involved in digestion, which is hydrolysis. Hydrolysis is the breakdown of a larger molecule into smaller molecules by reacting with water. So, for example, maltose is broken down into glucose by hydrolysis reactions, and proteins are broken down into amino acids by hydrolysis reactions. See http://www.biotopics.co.uk/as/disaccharidehydrolysis.html for a simple animation of the hydrolysis of maltose.