If you were able to see the inside of one of your bodily cells, you would notice that the inside primarily has what electrolyte and outside the cell is primarily what other electrolyte?

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.

1) according to the law of conservation of mass ,in all chemical reactions total mass is unchanged