Exam Review (incomplete) Flashcards
1
Q
what is the particle theory?
A
- S pace between all particles
- T wo different substances have different particles
- A ll particles attract each other
- M otion - all particles are in constant random motion
- P articles - all matter is made up of particles
2
Q
what is density?
A
amount of mass per unit volume (physical)
3
Q
what is ductility?
A
the ability to turn a material into a wire (physical)
4
Q
what is malleability?
A
ability to be bent or hammered into thin sheets (physical)
5
Q
what is combustibility?
A
ability to burn (chemical)
6
Q
what are the states of matter?
A
solid, liquid, gas
7
Q
what is a melting point?
A
the temperature of which a solid turns into a liquid
8
Q
what is conductivity?
A
how easily heat or electricity can pass through
9
Q
what is solubility?
A
how easily something dissolves in water
10
Q
what is brittle?
A
how easily something shatters
11
Q
what is clarity?
A
amount of light passing through
12
Q
what are the clues that indicate a chemical property?
A
- drastic colour change
- see a light, hear a noise, feel heat
- change in colour
- a new solid is formed
- bubbling
13
Q
what are the four chemical families?
A
- alkali metals
- alkaline earth metals
- halogens
- noble gases
