Year9 topic 1 Flashcards
1
Q
How big is an atom
A
0.1 nm
2
Q
What is a compound
A
A mixture
3
Q
What is the difference between atoms and elements
A
Elements are pure substances
4
Q
Who discovered the proton
A
Ernest Rutherford
5
Q
Who discovered the neutron
A
James Chadwick
6
Q
What is miscible
A
Liquids that can mix together
7
Q
Imisable
A
Liquids that can’t mix together
8
Q
Evaporation
A
When a liquid gains energy and becomes a gas
9
Q
Condensation
A
When a gas looses energy and becomes a liquid
10
Q
Distillation
A
A separation method that is the process of evaporation followed by condensation
11
Q
Distillate
A
The pure liquid obtained after distillation
12
Q
Boiling point
A
The temperature at which molecules are evaporating at the fastest rate
13
Q
Fractional distillation
A
A separation method that is the process of evaporation followed by condensation
