Properties and Changes of Matter - States of Matter and Properties

Question 1

gas

Answer 1

• shape: indefinite
• volume: indefinite
• compression: high
• thermal expansion: moderate

Question 2

liquid

Answer 2

• shape: indefinite
• volume: definite
• compression: low
• thermal expansion: small

Question 3

solid

Answer 3

• shape:definite
• volume: definite
• compression: very low
• thermal expansion: very small

Question 4

particle interaction

Answer 4

• gas < liquid < solid

Question 5

phase change

Answer 5

• solid-liquid-gas
• boiling water, water when from liquid to gas
• phase skip: solid-gas (skip over liquid phase)

Question 6

physical properties

Answer 6

• properties that can be observed or measured without changing the sample’s composition
• two types

Question 7

extensive

Answer 7

• depend on amount of substance present (mass, length, volume)

Question 8

intensive

Answer 8

• independent of the amount of substance present (density, color, odor, hardness, melting point, boiling point)

Question 9

chemical properties

Answer 9

• a property or characteristic of a substance that is observed during a reaction in which the chemical composition or identity of the substance is changed: Combustibility is an important chemical property to consider when choosing building materials.