Respuesta :
Mud dries and changes to dust. A match stick turns to ash while burning. stomach acids dessolving pizza. grape juice fermenting into wine. an iron pipe rusting. when in doubt if something is chemical or physical, know that physical changes can be state changes like condensation, melting, evaporation, freezing, etc. If a leaf is cut up, it is still a leaf, no matter how many times you cut it. if whats happening is changing what it is made of its a chemical change. hope this helped :)
The branch of science which deals with chemicals and bonds is called chemistry.
Those changes in which chemical reaction occurs are called chemical changes. The chemical change is irreversible changes.
The chemical change is as follows:-
- Change in temperature.
- Change in color
- Change in odor
Hence, according to the question, the chemical changes are:-
- A match stick turns to ash while burning
- Teeth crushing food
- Stomach acids dissolving the pizza
- Grape juice changing to wine (fermenting)
- An iron pipe rusting
Hence, these are the chemical changes.
For more information, refer to the link:-
https://brainly.com/question/19200238