they disolve
:)
The first product of proteins digestion are polypeptides.
Proteins are broken down into amino acids. These are actually called the building blocks of proteins.
digestion
Fatty acid molecules and glycerol
Physically or chemically.
Ash and smoke.
It changes into smaller molecules by the saliva.
The dependent variable , which is the one being measured.
Potatoes are mostly starch, a type of carbohydrate. Your stomach only initiates the digestion of proteins and does not digest carbohyrates or fats. When carbohydrates are digested, it occurs in the duodenum, the first portion of the small intestines. Here they undergo both chemical and physical changes. The digestion of carbohydrates begin in the mouth with the secretion of salivary amylase. The physcial digestion is considered to be mechanical at this point and is produced by chewing (masticating) your potatoes.
When a molecule freezes, the kinetic energy of that molecule decreases, and the molecules do not move as fast. It is chemically unaltered, but on the phase has changed, making it a physical change.
Dalton
Nothing is chemically changed when water goes from liquid-->gas. All that's happening is the molecules moving faster. H20(l)-->H20(g)