Section 1 - Particles & Mixtures Flashcards
1
Q
Three characteristics of solids
A
- strong force of attraction between particles
- regular lattice arrangement
- keep a define shape and volume
2
Q
Three characteristics of liquids
A
- weak force of attraction between particles
- stick closely together + randomly arranged
- dont keep a define shape
3
Q
Three characteristics of gases
A
- very weak force of attraction
- free to move and in straight lines
- the hotter the gas gets the faster they move
4
Q
solid into liquid
A
melting
- particles have enough energy to break from their positions
5
Q
experiments to demonstrate diffusion and particle theory
A
- Potassium Maganate and water
- Ammonia and hydrogen chloride
- Bromine Gas and Air
6
Q
Ammonia and hydrogen chloride experiment
A
- glass tube
- cotton wool soaked in aqueous ammonia
- ring of ammonium chloride
- cotton wool soaked in hydrochloric acid
7
Q
definition of isotopes
A
different atomic forms of the same element with the same number of protons but different number of neutrons
8
Q
definition of filtration
A
used to separate and insoluble solid from a liquid
9
Q
definition of crystallisation
A
separates soluble solids from a solution
10
Q
definition of simple distillation
A
used to separate solutions
11
Q
definition of fractional distillation
A
used to separate a mixture of liquids
