level: Mixtures
Questions and Answers List
level questions: Mixtures
| Question | Answer |
|---|---|
| What happens to the chemical properties of a mixture | Doesn't change because they have been mixed with another substance |
| Give me two examples of a mixture | 1) Air (mix of oxygen-nitrogen and co2 2) A bowl with pasta and vegetables |
| What is filtration | Separates an insoluble solid in a liquid |
| What does insoluble mean | The solid wont dissolve in a liquid |
| How do we filter an insoluble solid | we need a filter funnel and filter paper 1)Pour the mixture into the filter paper The liquid passes through while the solid is trapped |
| What is crystalisation | Separate a soluble solid from a liquid |
| What does solvent mean | liquid |
| What does solute mean | salt |
| Why do we leave it out to cool | because solids are less soluble at colder temp |
| steps of crystalisation | 1) Gently heat the mixture till the solvent evaporates 2) Crystals of the solid will start to form |