0
Q
Why does diffusion occur
A
It happens because particles in a Substance are always moving
1
Q
What is diffusion
A
The spreading of particles
2
Q
What speed do particles move at in
Solids
Liquids
Gases
A
Fastest - gases
Slower- liquids
Solids - very slow
3
Q
What happens when the bromine is left in the container
A
The liquid spreads and the colour lightens
Chemistry
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