Chemistry Properties of Matter

What does a sudden change in color tell us?

• the molecules are moving

• there is a physical change

• there is a chemical change

• energy has been added

Tags

NGSS.MS-PS1-2

What kind of change is occurring in the picture?

• physical change

• chemical change

• molecular change

• atomic change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the main states of matter has an indefinite volume?

• solid

• liquid

• gas

• plasma

Which of the three main states of matter has the least kinetic energy?

• solid

• liquid

• gas

• none of the above

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What properties of a gas are represented in the picture?

• compressible

• indefinite volume

• indefinite shape

• definite volume

• low kinetic energy

What is the critical point?

• the temperature and pressure at which all three phases exist

• the point at which the substance will not exist as a liquid

• the point at which the molecules combine in threes

• the point at which the molecules do not move

Tags

NGSS.MS-PS1-4

The Triple Point is _________________.

• where all three lines meet on a phase change diagram.

• where ice melts

• the temperature and pressure at which all three phases exist

• the point where a substance will not be a liquid..

Which state of matter has the most kinetic energy?

• solid

• liquid

• gas

• none of the above

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-1

As a substance changes from a solid to a liquid to a gas, what can we say about its kinetic energy?

• it releases kinetic energy

• it absorbs kinetic energy

• the kinetic energy remains the same

• it does not have kinetic energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

You are given 3 samples of an unknown substance. Each sample is in a different phase (one solid, one liquid, and one gas) and has a mass of 75 g. Which sample will occupy the most volume?

• solid

• liquid

• gas

• they all occupy the same volume