These persons consider for example liquid water and water vapors as different substances.
Boiling is a physical change.
No, hard-boiling an egg is a chemical change. By cooking the egg you change its chemical composition.
Boiling is a physical change.
Boiling is a physical change, not chemical.
no it is a physical change
Boiling is a physical change.
Chemical change.
property
No, hard-boiling an egg is a chemical change. By cooking the egg you change its chemical composition.
Boiling is a physical change.
no, boiling is a physical change
No
No.
Boiling is a physical change, not chemical.
Boiling is a physical change, not chemical.
Cooking is a chemical process.
Physical.