Answer:
Physical:
1. a sheet of copper
2. A banana is yellow.
3. Barium melts at 725 degrees Celsius.
5. a diamond is the hardest natural substance.
7. A bar of lead...
Chemical:
4. gasoline is flammable
6. helium does not react...
8. potassium metal...
9. an apple...
10. silver tarnishes...
Hope this helps! Tell me if I am wrong on any.
Step-by-step explanation:
Physical is something that can change but it is still considered the same substance. Chemical is when they change and it becomes something new.
