Structure 1.1.2

Question 1

What are some KEY things that fall under the Solid state of matter? What is its symbol?

Answer 1

• fixed volume and shape + particles vibrate in fixed positions
• cannot be compressed
• attractive forces between particles hold particles in closed packed arrangement

(s)

Question 2

What are some KEY things that fall under the Liquid state? What is its symbol?

Answer 2

• fixed volume + shape, takes shape of container is in
• cannot be compressed
• forces between particles weaker/forces in solid
• particles vibrate, rotate, and move around

(Cusive lowercase L)

Question 3

What are some KEY things that denote the gas state? What is its symbol?

Answer 3

• no fixed volume = fixed shape (expand and occupy available space)
• compressable
• particles forces taken as 0
• particles vibrate, rotate and translate (move around) faster than a liquid

(g)

Question 4

What is the symbol for dissolved in water?

Answer 4

(aq) (cursive q)

Question 5

Identify the state symbol for each of these substances?

Answer 5

1. Mg (s)
2. N2 (g)
3. C2H5OH ( cursive L)
4. Br2 dissolved in H20 (bromine water)
5. Mercury (liquid so cursive L)

Question 6

State the following changes in states of matter.

1. Freezing
2. Melting
3. Deposition
4. Sublimation
5. Evaporation
6. Condensation

Answer 6

1. Liquid -> Solid
2. Solid -> Liquid
3. Gas -> Solid
4. Solid -> Gas (w/o passing through liquid)
5. Liquid -> Gas
6. Gas -> Liquid