Changes of State Answers

9 verified answers1 views
2
Free Preview

Which statement best describes the atoms of the gas neon?

A
They slide past each other.
B
They move freely in all directions.
C
They vibrate in place.
D
They are packed closely together.
3

An analogy makes a comparison between objects based on their similar qualities. Cassidy wanted to create an analogy for the motion of atoms in solids, liquids, and gases, so she compared them to marbles in a tray.

A
A solid is like the tray being shaken and the marbles moving around it, and a liquid is like the tray being shaken slowly and all the marbles moving in their positions.
B
A solid is like the tray being shaken slowly and all the marbles moving in their positions, a liquid is like the tray being shaken and the marbles moving around it, and a gas is like the tray being shaken hard and the marbles moving vigorously around it.
C
A gas is like the tray being shaken slowly and all the marbles moving in their positions, and a solid is like the tray being shaken hard and the marbles moving vigorously around it.
D
A liquid is like the tray being shaken hard and the marbles moving vigorously around it, and a gas is like the tray being shaken slowly and all the marbles moving in their positions.
4

Which statement describes all solids?

A
They contain loosely packed atoms.
B
They have a definite shape and volume.
C
They have a smooth, rigid surface.
D
They flow with resistance.
5

Which best describes why a liquid needs a container when a solid does not?

A
Solids fill their containers, and liquids have definite shapes.
B
Solids have definite shapes, and liquids fill their containers.
C
Solids particles will expand to fill their containers, and liquid particles will expand as well.
D
Solids particles expand to fill their containers, and liquid particles do not.
7

Which statement best describes the atoms in a solid?

A
They are held together by strong attractions.
B
They slide past each other.
C
They are located far apart.
D
They spread to fill available space.
9

Gerry is looking at salt under a powerful microscope and notices a crystalline structure. What can be known about the salt sample that Gerry is looking at?

A
The atoms have spread out from each other.
B
The atoms are sliding past each other.
C
The atoms have no particular pattern.
D
The atoms are vibrating in place.

Did you find these answers helpful?

Changes of State Answers — MO-Physical Science…