calculate the composition of the following solution in mass/volume %: 20.0g benzene per 1.00x10^2 mL. ___% benzene

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.

Here is the link to the all information u need i mean answer key

Ireally don’t know bruh