Physical.
physical change
chemical change
Heating is a physical process but thermal decomposition is a chemical process.
When the steel wool burns, it is oxidized and thus this is a chemical change.
That is a physical change.
Physical, because the balloon did not have a change in its chemical composition when it broke.
The heating itself is a physical change, a chemical change might come from the heating, however.
Heating is a physical change.
This is a physical change.
physical change
physical change
physical change
Heating is a physical process.
Heating a frying pan is a physical change. A chemical change is when you change the chemical properties. Heating the pan is only changing the temperature of the pan not the chemical make up.
heat reaction leads to both physican and chemical changes
Heating is a physical process.
CHEMICAL:)