The digestive process begins in your mouth. Some of the substances in the food -- sugars would be one category -- are completely broken into absorbable nutrients by saliva. So, for the bread -- a food containing chemicals that are chemically modified by saliva -- there will be chemical interaction in your mouth.
It is a state change from a solid to a liquid and so it is physical.
Color change is considered a chemical change because it involves a transformation at the molecular level, where the chemical composition of the substance is altered, leading to a change in its color. This change is irreversible and indicates a chemical reaction has occurred.
Chewing food is not a chemical change, it is Physical. all you are doing is crushing down the food inside your mouth, not changing the actual substance.
Digesting a sandwich would not be considered a physical change because it involves a chemical process where the food is broken down into smaller molecules by enzymes in the digestive system. This process leads to the absorption of nutrients into the bloodstream rather than just a change in physical appearance or state.
Oh, dude, it's like a little bit of both! When you chew that juicy burger, the physical action of biting and breaking it down is a physical change. But then your saliva gets all up in there and starts breaking down the food chemically, so that's a chemical change. It's like a party in your mouth, man.
no chewing gum is a physical change, because the gum itself does not change.
The food you are eating changes state. The food is a solid but it get its state changes by you chewing food. Changing state is making a chage in apperance. So in a way it is a chemical change If that answers your question, your welcome!!
Chewing breaks down food into smaller pieces (a physical change). Enzymes break down the food into its different components (a chemical change).
No But It Is Considered To Be A Physcial Change
Yes.
It is a state change from a solid to a liquid and so it is physical.
Color change is considered a chemical change because it involves a transformation at the molecular level, where the chemical composition of the substance is altered, leading to a change in its color. This change is irreversible and indicates a chemical reaction has occurred.
Mechanical digestion is not considered a chemical change. Mechanical digestion involves physically breaking down food into smaller pieces through chewing and mixing with digestive juices, whereas chemical digestion involves enzymes breaking down macromolecules into smaller molecules.
garbage rotting is a chemical change because the odour becomes different which is considered a sign of chemical change.
Evaporation is considered to be a physical change. The chemical nature and identity of the evaporated material is the SAME as that of the liquid.
Eating an apple is both chemical and physical. By biting and chewing the apple you are causing a physical change in the apples general structure- nothing chemical. But when you swallow the apple and your stomach acid breaks down the apple and absorbs nutrients you are exerting a chemical change.
garbage rotting is a chemical change because the odour becomes different which is considered a sign of chemical change.