C1/C2 States of matter

2. A single substance, with a fixed composition, that does not have anything else mixed with it.
4. A substance that can be split into simpler substances, because it contains the atoms of two or more elements joined together.
7. Material remaining in the filter after mixture has passed through it.
9. Describes a substance that cannot be dissolved in a certain liquid.
11. Separating the solute from a solution by evaporating the solvent.
12. Solution passing through a filter.
13. Particle consisting of two or more atoms joined together by covalent bonding.
14. a filter to separate insoluble substances from a liquid.
17. Contains the maximum amount of solute that can dissolve in that amount of solvent at that temperature.
19. The liquid in which a solute dissolves to make a solution.
21. The piece of paper showing the results of carrying out chromatography on substances.

1. A substance that is not pure.
3. phase In paper chromatography, the solvent that moves along the paper carrying the dissolved samples with it.
5. Two or more substances jumbled together but not joined to each other. The substances in many mixtures can be separated from each other.
6. point A specific temperature at which a solid turns into a liquid.
8. Formed when a substance has dissolved in a liquid.
10. A substance made up of only atoms with the same number of protons in the nucleus.
15. phase The surface through which the solvent and dissolved substances move in chromatography.
16. A technique for separating the components of a mixture – for example different food colouring agents.
17. Substance that dissolves in a liquid to make a solution.
18. A tiny piece of matter that everything is made out of.
20. The smallest neutral part of an element that can take part in chemical reactions.