Respuesta :
Following the Law of Conservation of Mass, you simply add the mass of both substances. Thus, 160 grams + 40 grams = 200 grams. So, even if initially, they are in liquid and solid form, they would still have the same mass even if they change phases, owing to that they are in a closed space.
Answer:
200 grams, because all the atoms remain in the balloon or flask.
Explanation:
I got a 95 on usatestprep