Regan has an empty glass cup. It has a mass of 0.3 kg. She drops the cup on the ground and it shatters into several pieces. If she collected all of the pieces of the cup, how much mass would all of the pieces have combined? A.
There is no way to determine the mass of the shattered glass.
B.
more than 0.3 kg
C.
less than 0.3 kg
D.
exactly 0.3 kg

Exactly 0.3 kg

Explanation:

This is the right answer

a compound is a molecule made of atoms from different elements.

a. by the combination of an unlimited number of elements

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.