States Of Matter

Question 1

What are the three states of matter

Answer 1

Liquid
Solid
Gas

Question 2

In solids the particles :

Answer 2

• Have a regular arrangement
• Are very close together
• Vibrate about fixed positions

Question 3

In liquids the particles:

Answer 3

• have a random arrangement
• are close together
• flow around each other

Question 4

In gases the particles:

Answer 4

• have a random arrangement
• are much further apart
• move very quickly in all directions

Question 5

What happens when a substance changes state from solid to liquid ?

Answer 5

• the particles themselves stay the same
• the way the particles are arranged changes
• the way the particles move changes

Question 6

A pure substance will:

Answer 6

• melt and freeze at one specific temperature- the melting point
• boil and condense at one specific temperature- the boiling point

Question 7

The stronger the forces of attraction:

Answer 7

• the greater the amount of energy needed to overcome them

- the higher the melting point and boiling point will be

Question 8

In substances that contain small molecules:

Answer 8

• the bonds within the molecules are strong covalent bonds
• the forces of attraction between the molecules are much weaker
• only a little energy is needed to overcome the forces between the molecules, so the melting and boiling points are relatively low

Question 9

What is the state symbol of solid ?

Answer 9

( S )

Question 10

What is the state symbol of liquid ?

Answer 10

( L )

Question 11

What is the state symbol of gas ?

Answer 11

( G )

Question 12

What is the state symbol for aqueous ( dissolved in water )

Answer 12

( AQ )