How many milliliters of 13.2 .2 M 2 SO 4 are needed to prepare 600.0 of 0.10 M H 2 SO 4 ?

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.

The correct answer is "hydrogen".

Ithink about 50 % of an original isotope's number of atoms remain