Conservation of Mass Quiz 5A Science / Module 4
2. When matter goes through a phase change, what happens to its mass?
The mass is increased.
The mass is decreased
It stays the same.

If the number of atoms stays the same no matter how they are rearranged, then their total weight stays the same.

In all physical and chemical changes, the total number of atoms remains the same, hence when substances interact with one another, combine or break apart, the total weight of the system remains the same

you can't see the options

chert is a sedimentary rock composed of microcrystalline or cryptocrystalline silica. with this little bit of information, you can come to the conclusion that your answer is c.  

explanation: