Question

Liquid plastic is frozen in a physical change that increases its volume. What can be known about the plastic after the change?

Its mass will increase.
Its density will increase.
Its mass will remain the same.
Its density will remain the same



Serena is mixing a material into a beaker filled with a liquid. She notices that the material seems to disappear into the liquid. What physical property of the material is Serena most likely observing?

solubility
conductivity
magnetism
density



Which can occur in a physical change?

The mass can increase.
The particles can arrange in different ways.
The mass can decrease.
The atoms can bond to different atoms.




When liquid gold becomes a solid, its particles get closer together. Which best describes what happened to the gold?

the conservation of magnetism
the change in solubility in a physical change
the change in melting point in a physical change
the rearrangement of particles in a physical change


A soft, silvery-white metal combines with a yellow gas to form a white crystal-like solid. What can be said about this change?

The change is a physical change because the yellow gas changed into a solid.
The change is a physical change because a new substance was not formed.
The change is not a physical change because the color of the metal changed.
The change is not a physical change because a new substance was formed.



When water (H2O) freezes into ice, some of the properties have changed. What stays the same?

identity of the H2O
energy of the H2O
arrangement of the H2O
property of the H2O

Answer 1

1) Its mass will remain the same.
2) Solubility.
3) The particles can arrange in different ways.
4) The rearrangement of particles in a physical change.
5) The change is not a physical change because a new substance was formed.
6) Identity of the H2O.