A substance that dissolves another substance is a A. Solvent

B. Solute

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.

They can measure  the amount of energy gained or lost

If this is a true or galse then its true but if not then what is the question?

Answerthe same as;