In a chemical reaction, there is a change in the composition of the substances in question; in a physical change there is a difference in the appearance, smell, or simple display of a sample of matter without a change in composition.
Take a look at the attached picture. This is not the reaction of polymerization of salicylic acid. It just shows the structure of salicylic acid and the structure when it's polymerized. The polymerization is done by connecting the salicylic acids where you produce one molecule of water.
Answer:
electrical
Explanation:
It wouldnt be kinetic or potential since both of those have to do with motion, and it would not be heat because heat does not power a light bulb. Therefore, the answer is electrical.
90 Joules
Use formula, q=mc∆t where m=mass c=specific heat ∆t=Tf-Ti