On heating penta hydrated copper sulphate undergoes dehydration and changes colour from blue to white that means physical change but on heating it does not show a chemical change.
The heating itself is a physical change, a chemical change might come from the heating, however.
Chemical.....
Heating anything to a visible change is ALWAYS a chemical change
Heating sulfur is a physical change. You're not changing the chemical composition of the sulfur, just the temperature. Now if you heat it to its boiling point and and it changes to a vapor it's a chemical change because you've changed its state of matter.(Actually changing the state of matter of an object is still a physical change, as it does not change the chemical composition of the element)
Chemical, the resultant molecules have different structures and properties.
heat reaction leads to both physican and chemical changes
A lot of chemical reactions are initiated by physical changes - specifically, heating something.
Physical change
Chemical : cooking (not heating [especially in the microwave]). Physical : making ice cubes.
Only the heating part, all the taste changes are chemical.
You can't really fry oil. You can heat oil, and you can use it to fry something else, such as an egg. Heating oil is a physical change, though prolonged heating causes chemical changes to occur too. The changes to the food are chemical.
physical or chemical
physical or chemical
Heating is a physical process.
Heating is a physical process.
The heating itself is a physical change, a chemical change might come from the heating, however.
no. only maybe it's state changes from liquid to gas but that isn't a chemical change that's just a property change