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 :)
Coefficients need to be changed while balancing a chemical reaction beacuse subscript show how the molecule exists in nature
It's because of the angle at which the light hits the moon
Answer:
hi
Explanation:
protons,electrons and neutrons form atoms and
atoms form molecules
have a nice day
