Year 7-Chem- Particles and Separation Techniques
- Created by: JHanson
- Created on: 01-11-18 11:36
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- Particles and Separation Techniques
- Top 5 Definitions
- Solution
- A mixture of a solute dissolved in a solvent. All parts of the mixture are the same.
- Solute
- The solid or gas that is dissolved in a liquid.
- Filtration
- A way of separating pieces of solid that are mixed with a liquid or solution by pouring through filter paper.
- Solvent
- A substance, normally a liquid, that dissolves another substance.
- Distillation
- A technique that uses evaporation and condensation to obtain a solvent from a solution.
- Solution
- Define solids, liquids and gases using particle diagrams
- Liquids
- A state of matter where the particles are quite densely packed but not as much as a solid. The particles can be separated and compressed but only to an extent. The particles can flow.
- Solids
- A state of matter where all the particles are densely packed and can only be compressed slightly.
- Gases
- Gas particles are very far apart and can be compressed. The particles move around freely.
- Liquids
- Other Key Words
- Chromatogra-phy
- A technique to separate mixtures of liquids (which are sometimes coloured) that are soluble in the same solvent.
- Dissolve
- The complete mixing of a solute with a solvent to make a solution.
- Pure Substance
- A single material with no other substances mixed in to it.
- Saturated Solution
- A solution in which no more solute can dissolve into it.
- Solubility Curve
- A graph showing the change in solubility of a substance with temperature.
- Soluble (insoluble)
- A soluble substance can dissolve in a given solvent. An insoluble substance cannot dissolve in a given solvent.
- Chromatogra-phy
- Top 5 Definitions
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