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Physical Properties Answers

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

A
identity of the H2O
B
energy of the H2O
C
arrangement of the H2O
D
property of the H2O
2
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What happens when a substance undergoes a physical change?

A
Some physical properties change, but the substance keeps its identity.
B
No physical properties change, and the substance keeps its identity.
C
Some physical properties change, and the substance changes its identity.
D
No physical properties change, but the substance changes its identity.
3

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

A
The change is a physical change because the yellow gas changed into a solid.
B
The change is a physical change because a new substance was not formed.
C
The change is not a physical change because the color of the metal changed.
D
The change is not a physical change because a new substance was formed.
4

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

A
the conservation of magnetism
B
the change in solubility in a physical change
C
the change in melting point in a physical change
D
the rearrangement of particles in a physical change
5

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

A
Its mass will increase.
B
Its density will increase.
C
Its mass will remain the same.
D
Its density will remain the same.
6

Which statement best compares and contrasts two physical properties of matter?

A
Density and solubility are similar because they both involve water, but they are different because density involves dissolving a material and solubility involves floating or sinking a material.
B
Density and solubility are similar because they both involve a material’s mass and volume, but they are different because density involves floating materials and solubility involves sinking materials.
C
Boiling points and melting points are similar because they both involve changing the heat of a material, but they are different because boiling point involves adding heat to a material and melting point involves removing heat from a material.
D
Boiling points and melting points are similar because they both involve the change in a state of a material, but they are different because boiling point involves a change from a liquid to a gas and melting point involves a change from a solid to a liquid.

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