Fixed shapes and volumes
Solid has a fixed shape and volume
Liquid only has a fixed volume
Gas has none
Solid
Particles are close together, have no space to move around each other.
Liquid
Particles are still close but have enough room to move around each other.
Gas
Particles are further away than liquid and solid particles, gas particles have a very wide distance between them.
Evapouration
Liquid turns to gas
Condensation
Gas turns to liquid
Boiling
Solid turns into liquid
Melting
Solid turns into liquid
What is a mole?
The mole number is 602000000000000000000000.
Also know as Avogadro’s number.
6.02 x 10 to the power of 23
Speed distance time
Speed x time
Divide by
Distance
Formula mass
We can work out one mole of a compound weighs by adding together the atomic masses of the different elements