The release of energy can have physical or chemical causes.
some might.when you heat water,you see heat energy come out in the form of vapour
Yess
It is a chemical change, because the sun converts hydrogen into helium to create heat and light.
Yes this is a physical change because they are melting it and then it's being changed by the heat of the torch but heat is a physical change.
Chemical
Light, Heat,Electricity, magnitism
Physical, because the stuff that the butter is made out of doesn't change, just the state, or physical form, that it is in. (solid to liquid.)
Its a chemical change hottie
i think it would be physical because it is still energy.
color change
Gay
Gay
The observable change for burning a log is the production of heat, light, and smoke.
Heat absorption is a physical change. It can cause a change in state and/or a temperature increase, but the matter that is absorbing the heat does not change. It retains all of its physical and chemical properties that it had before absorbing the heat.
This would be defined as a physical change. In chemistry, this would be defined as anything from a change in mass or volume to a change in state (solid, liquid, gas). As long as the substance does not change in molecular structure, it is mostly a physical change. Common indicators of a chemical change is change in color, production of light, production of extensive heat, production of uncommon smells, or even bubbling.
Yes
i dont no the answer
No. Change in odour is likely to be related to a chemical process.
True. Chemical changes can vary from colour change to gas production.