level: Level 1
Questions and Answers List
level questions: Level 1
| Question | Answer |
|---|---|
| Atom | The smallest particle of a substance |
| The smallest particle of a substance | Atom |
| Element | Made up of multiple atoms |
| Made up of multiple atoms | Element |
| Compound | When two elements chemically join together |
| When two elements chemically join together | Compound |
| Mixture | Two or more substances mixed together (not chemically combined) |
| Two or more substances mixed together (not chemically combined) | Mixture |
| Evaporation | To separate a soluble substance from a solution (eg. salt + water) |
| Filtration | To separate insoluble substance from a mixture (eg. sand + water) |
| Chromatography | To separate a mixture of soluble substances (eg. inks) |
| Fractional Distillation | To separate a complex mixture of liquids (eg. crdue oil) |
| Ion | A charged particle that has either lost or gained a particle |
| Group 0 | - unreactive because they have a full outer shell - boiling point increase down the group |
| Group 1 | - they get more reactive down the group |
| 3 types of bonding | Ionic Covalent Metallic |