BRAINCAKEStates of matter and mixtures
Revision notes for States of matter and mixtures in Edexcel Chemistry (1CH0). Every lesson in BrainCake comes with R.E.C.I.P.E. recall steps, a quick check and spaced reviews.
- Particles in solids, liquids and gasesMatter exists in three states: solid, liquid and gas.
- Changes of stateWhen a substance changes from one state to another, we use a special name for the change.
- Particles during changes of stateBetween the particles of a substance there are forces of attraction.
- Predicting the state of a substanceEvery pure substance has a fixed melting point and boiling point.
- Pure substances and mixturesIn everyday life, pure often means that nothing has been added to something.
- Melting point data and purityA pure substance melts at one exact temperature.
- Simple distillation, fractional distillation and filtrationWhich separation technique you use depends on what kind of mixture you have.
- Choosing a method to separate a mixtureTo choose a separation method, ask what is different about the components of the mixture.
- Paper chromatographyPaper chromatography separates mixtures of soluble substances, such as the dyes in an ink.
- Interpreting a paper chromatogramThe paper after a chromatography run is called a chromatogram.
- Core practical: inks, distillation and chromatographyThis core practical investigates what an ink is made from.
- Making water potablePotable water is water that is safe to drink.