Question

in a change from liquid to gas or gas to liquid, the total weight of matter______.
A. increases
B. increases
C. changes
D. stays the same

Answer 1

Answer:

Stays the same

it will stay same because if the state is changing then it's a physical change which can be reversed and hence no change in weight is seen.

D is the answer.

Answer 2

As a result of change of state total weight remains constant.