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Sci: separate mixes
Separating mixtures
| Question | Answer |
|---|---|
| Whats a mixture? | A mixture is two or more different substances, mingled together but not chemically combined. Eg different colours of skittles in a bag. |
| What are four ways to separate mixtures? | 1. Filtration 2. Evaporation 3.distillation 4. Paper chromatography |
| What’s filtration? | Filtration is separating an insoluble solid from a liquid. It uses a material that allows liquids to pass through but not solids. |
| Whats a solute? | Something that gets dissolved by a solvent e.g sugar |
| Whats a solvent? | Something that dissolves a solute e.g water |
| What’s evaporation? | Evaporation is used to separate a soluble solid from a liquid. It uses heat to boil a mixture, leaving a residue behind. E.g boling salt water to get pure water. |
| Whats residue? | Residue is whats left behind after separating. |
| What’s distillation? | Distillation is separating a soluble solid from a liquid while also keeping both. A common way to do this is through a liebig Condensor , which uses evaporation and condensation to keep both. |
| Whats paper chromatography? | Paper chromatography separates ink from a mixture using a chromatography paper. You dangle it into a mixture and allow for the paper to absorb the inks, then letting it dry. |
Created by:
O15iny
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