Difference between Physical and Chemical change ?

What are some examples of chemical and physical changes?

Besides the extent of branching, can you think of any other structural parameters that might lead to differences in physical properties? : Polymer Chemistry

How does the molecular-level structure of these polymers influence their physical properties? : Polymer Chemistry

Examine samples of ldpe (sandwich bag, squeeze bottle) and hdpe (milk jug, grocery bag). What are some of the differences in the physical properties of these substances? : Polymer Chemistry

A polymer's structure influences its physical properties. Describe two structural variations that are possible for polypropylene but not for polyethylene. : Polymer Chemistry

What are some of the polymers that you encounter every day? Describe their physical properties. : Polymer Chemistry