level: Elements compounds and mixtures
Questions and Answers List
level questions: Elements compounds and mixtures
| Question | Answer |
|---|---|
| What is are all substances made off | atoms |
| what is an element | Contains only one type of atom e.g. Mg, S, K |
| What is a compound | Two or more different elements that are chemically combined |
| Are the properties of compounds the same as the element they are made from? | No they have completely different properties |
| How do we separate a compound back into its elements | A chemical reaction |
| What is an atom | The smallest possible unit of an element |
| What is a mixture | Different elements or compounds that are not chemically combined |
| How do we separate a mixture | Using physical techniques |
| What are examples of a physical technique | Filtration, distilation, chromatogrpahy etc |
| What is a molecule | Any element chemically joined |