Topic 1: Particles - Subtopic 1: The Particle Model

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

Front (Question)

What are the three states of matter?

Back (Answer)

• Solid • Liquid • Gas

Front (Question)

Where do state changes occur?

Back (Answer)

Melting and Boiling Points

Front (Question)

What state changes occur at the melting point?

Back (Answer)

• Melting • Freezing

Front (Question)

What state changes occur at the boiling point?

Back (Answer)

• Boiling • Condensing

Front (Question)

What state change occurs at any temperature?

Back (Answer)

• Evaporation • Maximum rate occurs at boiling point

Front (Question)

True or False: Individual Atoms and Bulk Matter share the same properties

Back (Answer)

False, they do not share same properties

Front (Question)

Describe the properties of a solid

Back (Answer)

• Regular Arrangement • Vibrate about a fixed position • Very closely packed

Front (Question)

Describe the properties of a liquid

Back (Answer)

• Randomly Arranged • Move around each other • Close

Front (Question)

Describe the properties of a gas

Back (Answer)

• Randomly arranged • Move quickly in all directions • Far Apart

#10

Front (Question)

What is a physical change?

Back (Answer)

Change which doesn’t involve a change in the identity of the substance

#11

Front (Question)

What is a chemical change?

Back (Answer)

• Chemical reaction • Change in which one or more substances are converted into different substances

#12

Front (Question)

What do you call the substance that react in a chemical change?

Back (Answer)

Reactants

#13

Front (Question)

What do you call the substance that form in a chemical change?

Back (Answer)

Products

#14

Front (Question)

What does a physical change usually involve?

Back (Answer)

• Changes in force between the particles of substances • Particles and chemical properties remain the same

#15

Front (Question)

True or False: Physical Changes are easy to reverse

Back (Answer)

True, no new substance is formed during interconversions of state making it easy

#16

Front (Question)

What is the state change for melting?

Back (Answer)

Solid to liquid

#17

Front (Question)

What is the state change for boiling?

Back (Answer)

Liquid to gas (from below surface and at surface)

#18

Front (Question)

What is the state change for freezing?

Back (Answer)

Liquid to solid

#19

Front (Question)

What is the state change for evaporation?

Back (Answer)

Liquid to gas (at surface only)

#20

Front (Question)

What is the state change for condensation?

Back (Answer)

Gas to liquid

#21

Front (Question)

What is the state change for sublimation?

Back (Answer)

Solid to gas

#22

Front (Question)

What is the state change for deposition?

Back (Answer)

Gas to solid

#23

Front (Question)

What does particle theory explain?

Back (Answer)

• Matter changes state based on the energy and forces between particles in a substance

#24

Front (Question)

What determines the energy needed to change a solid to a liquid or a liquid to a gas?

Back (Answer)

• Relative strength of the forces acting between the particles